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1993 Audi 90 2.8L AC/Heat selection
When the temp control(center knob) is in the cold position, the right (position) knob works fine. Wherever you put the control, i.e. dash vents, feet, or defrost, all works fine. When you put the temp control on hot, air blows from the front vents only, and wi...		 View
2001 Audi Allroad 2.7L signal module
Here is a strange one. Car came in with no turn signals, but hazards were fine. Replaced the combination module in the dash and the signals now work, but the module makes a erratic buzzing noise when the signals are not applied, with no buzzing when they are a...		 View
1995 BMW 318i 1.8L coolant flow/water pump
need help from all of bimmer experts, vehicle came in w/ compaint of running bad and overheating. Found coolant in cylinder #2 and of course low coolant level. Valve seats leaking on head so replacement head was installed along w/ new radiator hoses,t-stat, an...		 View
1989 Chevrolet Camaro 5.0L Cuts out, Stall
OK..I dont ask for help much on here but I got one thats drivin me crazy. I am a Honda tech but IM working on this one at home. I do have some previous GM experience but I need you GM guys to help me out on this one. Here goes. This IROC was brought to me with...		 View
1998 Chevrolet Cavalier 2.4L abs module-no communication
vehicle came in with the abs and brake warning lights on. hooked up Solus and checked for DTCs. no communication between module and scanner. checked DLC connection, fuses and relay:good. checked for communication between scanner and PCM:ok. suspected a failed ...		 View
1999 Chevrolet Malibu 3.1L feul and temp gauge
car came in with no feul gauge or temp gauge.hook modis up and the fuel sender has 205 ohms checked back at sending unit with meter and 207 ohm.than looked at cooling temp and the scanner show its working goes from the temp out side to 220 than the fans come o...		 View
2000 Chevrolet Blazer 4.3L Hesitation, Cuts out, Stall
Hello there I have a problem child here. This blazer is cutting out and will stall under a light load while taking off. If you brake torque the vehicle it will easily build power to where the tires just barely spin(has low power), but if you put it into gear a...		 View
2001 Chevrolet Monte Carlo 3.8L low power,boggs
Hello,I have been working on this 01 Monte Carlo SS 3.8 vin k. Customer has replaced the Cat,and Fuel Pump to try and correct the problem.MAF had erratic readings for me and eng would die when tap testing,so ihave replaced that as well.Heres the problem,after ...		 View
2003 Chevrolet Cavalier 2.2L Dash vibration
This car has a vibration in the dash right behind the center defrost vent the whole dash pad in this area will vibrate up and down but only when the ac is on and the rpms are just right between 800 and 1100. It seems to be most noticeable when slowing for a st...		 View
2003 Chevrolet Silverado 6.0L Oil Leak
The vehicle came in with the oil level light on. There was oil dripping all over the ground. The oil pressure is low on the gauge and a large amount of oil is coming out of the draft tube. We are not shure why oil is continuing to come out of the draft tube at...		 View
2004 Chevrolet Aveo 1.6L MIL Lamp on
thanks for any and all help on this one. orginially came in with po300 and po1781. changed plugs and wires. no help, can find no intermitten miss. tested po1781 tcm sending engine speed info to pcm false. test called for checking voltage on c.a.n system from p... Trouble codes: PO300 (intermitten misfire), PO700 (tcm set code thru pcm), PO700PD (na), PO1781 (tcm comm to bcm about engine speed malfunction).		 View
2005 Chevrolet Venture 3.4L starting
van was brought to shop, customer explained he was driving down the road and the van died all of a sudden with no warning. van does not crank over, I checked batt voltage wich was acceptable at 12.6,checked fuseable links a starter and found to be good.Checked...		 View
2006 Chevrolet Silverado 5.3L A/C compressor
A/C clutch was melted. Replaced with complete assembly. No A/C clutch operation. Charge is good. Any known concerns with A/C on these???		 View
1995 Chrysler LHS 3.5L compressor
Hi fellow technicians: Have this ac problem on this LHS. The ac compressor will not engage. The refrigerant is fully charged. Checked for codes and none found. Checked for codes on control head and no codes present. I can activate compressor clutch with scan ...		 View
1997 Chrysler Sebring 2.5L No Start
Towed in. no spark but has injector pulse. Checked spark from coil ok. put new cap and rotor still no spark. Does it need a distributor or am I missing something ? Thanks for the help.		 View
2002 Chrysler Sebring 2.7L No Start
thanx everybody for your replies. this one i hope is an easy one, vehicle cranks does not start. fuel pressure is good. vehicle looses sync between crank and cam. had both sensors replaced. still no start. to make a long story short: found out car will start i...		 View
2003 Dodge Pickup 5.9L speedometer
I had to take the dash out of this vehicle and replace the instrument cluster. I was able to find a used cluster with almost the exact mileage. With the new cluster in all the engine monitoring guages work. The Speedometer and tach are not working. Truck drive...		 View
1993 Eagle Summit Wagon 2.4L Excessive Emissions, Poor Idle Quality, Surge
running rich oxygen sensor stuck 1.0,on time for injectors at idle at 6 msecs. any advice or help appreciated		 View
1989 Ford Pickup 5.0L Surge
Hey everyone, This veichle is on dual fuel, Petrol and LPG. The veichle has a surge/buck on accell, decel cruise and is also low on power on both petrol and lpg. But the car will idle perfectly and start really easy. I have tried the common causes found on iat...		 View
1996 Ford Ranger 2.3L O/D light blink @ warm up
Howdy everyone. I'm Clay down here in hot Louisiana with a troubled Ford Ranger. Our customer came in just under 1,000 miles ago for his transmission fluid service. Since he comes to use every 30,000 miles religiously, we had no worries flushing fluid on a pic...		 View
1998 Ford Explorer 4.0L Multiple codes
Hello everyone and thanks for the help. I have this explorer in doing all sorts of "unshifty" things and the light on. Has codes 1747, 0743, 0750, 0755, 0760, 0765, 1451, 0135, 0155, 1409. The bulk of these are the shift solenoid codes and O2 sensor heater cod...		 View
2003 Ford Econoline 7.3L No Start, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on
Good morning. Vehicle originally was brought in 1000 miles ago with a stall no start complaint. I found codes P1316 and P1293 with right bank injectors not firing upon buzz test. I removed valve cover to inspect harness but found no issues as continuity from H... Trouble codes: P1316 (idm fault codes detected), P1292 (high side 2 left short to grd. or b), P1293 (high side open right group).		 View
2003 Ford Ranger 4.0L MIL Lamp on
I have 2 codes in this one. Lean bank 1 lean bank 2,fuel pressure and flow are good. No vacuum leaks found, intake plenum gaskets have been replaced. No egr to screw up. Long term fuel trim is 25% on both banks. At idle the short term fuel trim runs up to 18% ... Trouble codes: p0171 (lean bank 1), p0174 (lean bank 2).		 View
1997 Honda CR-V 2.0L torque converter lock-up
has a judder in chassis at 30 mph when lock-up converter engages,i didnt find any chart containing specific speeds at which lock-up should occur. normal at all other times,steady cruise 30mph right when rpm drops as lock-up occurs judder begins.. rpms are arou...		 View
1998 Honda Civic 1.6L Abs/module/pump
hello everyone. please help honda techs. this is a weird one. abs light was on when i drove the car in, scaned and found codes 12-01 rf WSS failure, 16-01 RR WSS failure, 18-01 Lr Wss Failure, 54-01 fail safe relay falure and 61-01 battery voltage failure. I t...		 View
2005 Honda Accord 3.0L abs/tcs module
car got into acc. recived code 84-1 says to r r abs/tcs module did that still get the same code		 View
1992 Jaguar XJ6 4.0L No Start
Im working on a 1992 Jaguar XJ6 Soverign. It will not start. After doing a full tune up the vehicle will not start. The firing order is correct, and the vehicle ran fine before the the tuneup. We replace the ignition coil and the crank position sensor. Help!? ...		 View
1986 Jeep Cherokee 2.8L Stall, hard start
Hello to all, I have a problem child. The Jeep came in after sitting for several years. Running very poorly and with blown exhaust manifold gaskets. The new owner told me to keep it until it is fixed...I put new manifold gaskets on and performed a complete tu...		 View
1993 Jeep Grand Cherokee 4.0L interior lights,overhead console,door locks radio.
Can anyone inform me where fuse #8 originates from? we found that fuse #8 controls all of the acc. that are not working and jump with power and now all things work. i need to know where #8 starts, mitchell is not clear.Thanks for any replies Robert [...].		 View
2000 Jeep Grand Cherokee 4.7L brakes
PLEASE HELP!!! Hello, towed in last week no brake pedal(bad master,internal failure) replaced master cyl, also sold front pads and rotors (worn low). Customer took car next day complained of brakes dragging and car down on power. I took back and road tested ho...		 View
2002 Jeep Grand Cherokee 4.0L abs
Hello all and thanks for reading this in advance this jeep has a code 21 valve power feed circut i followed the flow chart in mithchel and it say to check fuse #19 to see if it is blown which it's not then want to make sure there is power there and there is th...		 View
1994 Land Rover Range Rover 4.2L Suspension
1994 Range Rover LWB This vehicle shakes violently when hitting a bump at speeds above 50mph. The car was originally one with air suspension. The previous owner converted it to coil springs. The shaking is literally the front axle jumping up and down off of t...		 View
2003 Land Rover Freelander 2.5L Vibration
This vehicle has a hard vibration at about 20-25 mph at medium throttle. It goes away as quick as it appears. It does seem to get worse with more throttle. I think it is an engine miss(even though there are no codes and it only happens at 25mph) and my boss th...		 View
1994 Lexus SC 300 3.0L compressor
system is full, no tr. codes. no power to compressor. no flashing lites. no ground on terminal #2 at clutch relay, power and grnd on all other terminals. no power at press sensor. am able to jump # 3 & 5 at relay, then works fine. thanks for all yr help.		 View
2002 Lexus ES 300 3.0L SRS system
Okay Techs, I have a vehicle purchased used recently by a customer and it is in my shop with the SRS light on. He was told by the seller that the vehicle was in a minor collison in 2004. The collison did not cause air bag deployment(they are intact), but the l...		 View
1995 Lincoln Town Car 4.6L radio
when the vehicle is shut off the radio sometimes will not turn off after opening drivers door. also sometimes when it just sets after turning off and the radio goes off when opening drivers door. The radio will then come back on at times and stay on with nothi...		 View
1990 Mazda B2600i 2.6L No Start
The technical data i have for this vehicle is very vauge at best.Am curious as to where computer gets its data for injector pulse as there is no cam or crank sensors.I'm assuming from distributor this is only a guess .Does any one have any good data or advice....		 View
2005 Mazda 6 2.3L No Start
Customer Brought vehicle in for engine replacement. Engine was changed out for same year engine, had to switch over exhaust manifold, and Remove Coil pack, to accommodate the coil on plug set up. Every thing else was the same. Put engine in vehicle, and car wo... Trouble codes: P0335 (CKP Sensor Curcuit Malfunction).		 View
1989 Mitsubishi Montero 3.0L Misfire
I have not seen this before in my 30 plus years working on these damn things we call cars. This truck looses spark ONLY in drive and ONLY cyl #2. At idle in park, it has spark but when you put it into gear, no spark and only #2 cyl. Any ideas? I changed the ca...		 View
2003 Mitsubishi Montero 3.8L transfer case
Good Morning all, We have the above mentioned Montero in for diagnosis due to the 4wd lights flashing and transfer case not switching between modes (2h to 4h, 4hlc or 4llc). Vehicle arrived with t-case stuck in 4hlc. When we shifted the selector lever to any o...		 View
1994 Nissan Altima 2.4L No Start, Cuts out, Stall
Greetings fellow techs.I have this nissan that is confusing me.Vehicle has recent aftermarket dist before we got it.Anyway here is the problem.The car almost always takes a long time cranking before it will fire.Once it fires it idles fine but on a road test w...		 View
2005 Nissan Pathfinder 4.0L oil consumption
This person just purchased vehicle. No history except customer carried to dealer and they replaced v. cover trying to fix problem. Has anyone ran across this problem? Are Nissans having problems with rings or possibly valve guide seals. Would a leak down test ...		 View
1997 Oldsmobile Achieva 2.4L No Start
some times the car starts no problems. at time no pateran car start then stalls secerity light flashes 5 time or more. leve key on when light stops flashing starts up. i replaced ignition cyl. and relern comuter. got part from dealer and new key from dealer. j... Trouble codes: P1629 (theft deterrent no signal).		 View
1987 Other GM Coupe 5.0L TCC solenoid
The Avanti factory purchased NEW '87 Monte Carlo SS, removed body and installed their body. PROBLEM: At 60 mph on interstate TCC solenoid will keep turning on and off. Do not notice any problems with TCC solenoid below 60mph. Scanner shows road speed constan...		 View
1997 Plymouth Voyager 3.3L battery
Thank you for reading this. This car is driven about once a week and goes through a 700 cca Interstate battery about every 9 months. It charges 13.4, but has a key off draw of 80ma even after sitting for 30 minutes. Testing reveals: 1. After waiting about 5 m...		 View
1994 Pontiac Grand Prix 3.4L power antenna
Greetings. Looking for schematic for this power antenna setup. It is the non relay oonfig (coupe). Alldata and Chiltons only provide for the relay config (sedan). The connector at the antenna motor has org, drk grn, and blk wires. Org is always hot driving the...		 View
1998 Pontiac Grand Am 2.4L Stall
hey guys i have a 98 grand am that is driving me insane it will stall when the cooling fans come on just sitting idling if you idle it up it will just stumble a little or it will stall when driving and come to a stop. i replaced the cooling fan cause i thought...		 View
2001 Saturn LW300 3.0L MIL Lamp on
eng service light on, eng and driveability ok, passed e-test with flying colours, otc scanner shows that the pre - cat o2 sensors are not working ( we checked connections ok)customer reluctant to put in 2 $475.00 o2 sensors. what puzzles us is if these o2 sens... Trouble codes: PO151 (heated o2 sensor low voltage bank 2 sensor1).		 View
2002 Saturn Vue 3.0L coolant
hello all, i,m here just trying to establish a starting point on this 1..i just aquired this vue.it has coolant in the radiator & it looks like it has been overflowing for a while..it was a trade in at a local used car dealer,& i got involved in this my by my ...		 View
2003 Saturn Vue 3.0L Steering Wheel
The vehicle came into my bay with problem with the steering being to hard. This vehicle is equipped with an electronic steering with module. When you start the vehicle up the steering is too hard, if you restart the vehicle the steering becomes light again. Th...		 View
1995 Toyota Tacoma 3.4L MIL Lamp on
Ok Toyota techs I need a little reassurance. Truck came in with complaint of low power and running poorly when warm. SES light was on. Scanned and got code P0330. Alldata lists possible causes as 1.open or short in knock sensor circuit 2. 2 knock sensor 2 loos... Trouble codes: P0330 (no knock sensor 2 signal to ECM with engine speed 2000 rpm).		 View
2003 Toyota MR2 1.8L Starting
This is a good one! Car came in, no start, no crank...missing a ground to the starter relay from the ECM. Car has weird manual trans with no clutch...No check engine light, no gear selector indicator light, no security light has code po863 Transmission control...		 View
1999 Volkswagen Jetta 2.0L Starting
Hi All Kind of puzzles here. Working on a 1999 2.0L Jetta, that runs/idles great when cold, after running for about 1 minute is will start to sputter and cough, sometimes even dies. Restart in right away and it will sputter,cough etc... if you let if cool down...		 View
1999 Volkswagen Passat 2.8L abs module
Hi Fellows, so we have the car . The dealer send us a ABS module 8E0 998 375 B or Bosch No. 1 273 004 285. According to this VIN : [...] All the 3 codes with ABS & red BRAKE light are gone , except the Traction control light & now we have this new...		 View
2000 Volkswagen New Beetle 2.0L Misfire
car came in cel misfire #4. had spark injector pulse,found #4 injector leaking vacum when smoked intake looking for leaks. replaced o rings then replaced coil from another car same misfire code. all this happens at idle obove 1500 car runs fine. ran a bottle o... Trouble codes: 304 (cylinder 4 misfire).		 View
2004 Volkswagen Phaeton 4.2L Poor Idle Quality, Misfire, MIL Lamp on
car came in had a broken arm to the intake runner replaced arm @cleard code p0308 302 306 305 307 came back car will miss ck comps 170 car has injector pulse spark is ok timing belt is on i removed intake and insp no problem seem. Trouble codes: 16684 (p0300 17951 p1543 1758 p1172 17987 p1579), 16691 (p0307), 16686 (p0302), 16689 (p0305), 16692 (p0308), 16690 (p0306).		 View
1993 Volvo 240 2.3L warning lights, gauges
This one came in with no instrument lighting, temp gauge reading low. After removing inst cluster found only one lighting bulb, burnt out. Installed 2 bulbs, still no inst lighting. Put in new voltage stabilizer and temp gauge worked find. While trying to figu...		 View
1998 Volvo V70 2.4L Heater fan
When driving with electronic climate control on, temp controls low, A/C on, fresh outside air coming in, The heater fan will shut off after a few minutes @ highway speeds. When I slow down fan will start coming back on @ 25mph & be back to normal speed @ 15mph...		 View

Fixes & Summaries for All Makes and Models
Fix/Summary Answers
1994 Buick LeSabre 3.8L Hesitation, bucking
THANKS TO ALL THAT OFFERED HELP. FINALLY AFTER TRYING IGN MODULE AND CRANK / CAM SENSORS AND CHECKING WIRING WE INSTALLED A COMPUTER WHICH SOLVED THE PROBLEM Trouble codes: po341 (intermittant cam sensor signal), po342 (cam sensor failure).		 26
1997 Chevrolet Pickup 5.7L abs
Thanks for all the help I finally fixed this one after replacing brake hoses and rotors and pads		 17
1998 Chevrolet Pickup 7.4L fuel gauge erratic
What we had was an intermitant tank sensor in the rear tank. We checked the ohms when it was acting up and found 10,000 ohms on the rear tank when it should be 40 to 250 ohms. Trouble codes: P0462 (fuel level sensor).		 3
2003 Chevrolet Silverado 4.8L Traction control light
We deliver the vehicle this way , customer is supposed to bring it back to check the other issue. We check back with the dealer and we had the right part.		 3
2005 Chevrolet Express 5.3L MIL Lamp on, Extended Cranking
as we thought pcm did fix after the ign feed (orange) chafing was repaired. still haven't had a chance to open up the old pcm to check it out. thanks guys. -J Trouble codes: P0342 (cmp low).		 5
2006 Dodge Pickup 5.7L starter
Hey Guys, Thanks for the info but nothing really helped,waS told to change starter.Could not do this as it works perfect when you jumper relay?As some suggested to check grounds did this 3 or 4 different times before posting?Anyway thanks again for taking the ...		 4
1995 Ford Bronco 5.8L timing chain
Thanks for all of the responses, as there seems to be no real consenses, so I removed the timing cover and found a double roller chain and gear, factory in this case, there was no real problem to start with except the customer wanted to insur no pending proble...		 23
1999 Ford Econoline 5.4L Electronic
I got several replies on this one. Most replies stated that the customer overheated the trans which caused the front seal to fail. Vehicle came back and I test drove the vehicle. I was unable to notice any slipping in any of the gears. With the scanner I was a...		 9
2002 Ford Pickup 7.3L Starter
Many thanks to Chris of Alberta. A New OE Starter from Ford was the fix. The same test with the OE starter on the ground proved that the OE Starter had more kick out strength on the starter gear. The starter was quite a bit more money but well worth it. I was ...		 8
2004 Ford Freestar 3.9L Poor Idle Quality, MIL Lamp on
Thank you,for your help everyone.I did replace the MAF sensor first but not much differance. so I went after the vacumn leaks. Intake manifold (for leak @ IMCR bearing) and of course intake gaskets as well,not much proof of gasket failure. LTFT alot better +2 ... Trouble codes: P0171 (bank 1 lean), P0174 (bank 2 lean).		 10
2003 GMC Yukon XL 5.3L Hesitation
Thanks for all the emails, however I still have not been able to fix this vehicle. I have inspected for vacuum leaks several times both when cold and hot. I have disconnected the MAF to see if it runs any different and it does not. At this point I am going ...		 12
2003 GMC Sierra 6.6L transfer case
FINALLY FOUND A PINHOLE THAT WORE THROUGH THE CASE FROM THE PUMP. THE THING THAT THREW ME OFF WAS THAT THERE WAS NO EVEDENCE OF OIL ON THE OUTSIDE OF THE TRANSFER CASE, IT WAS PERFECTLY CLEAN AND DRY. BRENT FROM MICHIGAN NAILED IT BY SAYING THAT THE TRAC 2 FLU...		 6
2000 Isuzu npr .0L engine
Thanks for al the reponses. We found the drain tube clogged for the breather. Customer has put truck back in use and I am waiting to hear from him how it does. I think it will be fine now.		 4
2004 Land Rover Range Rover 4.4L Suspension
THANK YOU FRANK, SLAWOMIR, AND ETHAN FOR THE QUIK RESPONSES. I ORDERED FIRST THING THIS MORNING FROM ROVER PARTS. THE PARTS QUY WAS NICE AND THEY EVEN HAVE A DEPOT IN RENO. THANK AGAIN TO IATN. ONE OF MY BEST TOOLS.		 3
1993 Lexus LS 400 4.0L No Start, Stall
Thanks for all the replies, I replaced the ecu and haven't seen the car or customer for a week, no news is good news , Thanks		 7
2002 Nissan Altima 2.5L Misfire, MIL Lamp on
Thanks to everyone who replied with some great tips and suggestions. Like a lot of you have stated we knew there are intake problems on these vehicles, however it is usually found on the early models up to 2001 and the misfire stays steady and does not go away... Trouble codes: 304 (cylinder 4 misfire).		 7
2002 Oldsmobile Alero 3.4L No Start
ok, One of my replies stated to check bcm codes. Thank you for that. In my personal diagnostic procedures I have " scan all modules" as a part of the troubleshooting chart. I came to realize one of the three bcm inputs was inactive on the tech 2 scanner. Trace...		 7
1989 Pontiac Firebird 5.0L Poor Idle Quality, Surge, Stall
Hello thanks for all the help, it turned out that fuel hose from the pump to the pipe in the tank had deteriorated and was perferated causing the flow rate to bypass we replaced the pump and the sender assembly and that fixed the car. thanks again!		 9
1996 Pontiac Bonneville 3.8L No Start, Poor Idle Quality, Cuts out, Stall, Poor Fuel Economy
Thanks to all who replied , it as was the ground connector on the left kick panel that was the cause . It was green and coroded . After cutting all the wires and connecting them back to a good ground car was running again . 		15
1987 Porsche 944 2.5L headlights
The car fixed it self. My customer told me to get a used motor but I thought I should wait a few days before ordering since the car had been sitting for months. He called and said it was working, I guess the contacts in the motor cleaned themselves. Thanks fo...		 6
1996 Saab 9000 2.3L control panel/compressor
Oren, my thanks , you were dead on the money. Replaced the ac relay with a "b" type relay and everything works great now. 40 deg. temp and all systems function properly. thanks again. Ed		 4
1993 Subaru SVX 3.3L abs
Hi all, thanks for the help, it turns out that there is a abs ecu under the passengeres seat with a led flashing any fault codes, the code i had was for a faulty control module, the customer declined to have it repaired until its yearly rego inspection was due...		 3
2001 Subaru Outback 2.5L MIL Lamp on
Thanks to all who replied, especially Andy from Washington. After cleaning "all" grounds we where able to clear codes and run all monitors with no C.E.L. Also checked trans switch, all ok. Trouble codes: PO507 (High idle).		 2
2003 Volkswagen Jetta 2.0L tailgate unlock motor
Hi: Customer has not rescheduled for another look. Comments were to check drivers door switch, possible bad lock module or convenience module, microswitches on trunk latch. Thanks to Tim, David, Jason and Nic.		 4
2003 Volkswagen Jetta 1.9L MIL Lamp on
Thanks to all who replied. We had cleaned the egr and throttle body previous to this post. We drove the vehicle with a vacuum gauge inline with the egr vacuum line and a lab scope to the wire going from the solenoid to the ecm. When the fault finally happen... Trouble codes: P0401 (low egr flow).		 6
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