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1998 Buick Park Avenue 3.8L High Idle Speed
The intake was replaced because it exploded. After the body
shop installed the new one the vehicle wouldn't crank over.
All the moduals communicated with the Tech II except the
ECM. All the power and grounds checked so I bought a
service unit from GM and insta... |
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1996 Chevrolet Suburban 5.7L Hesitation, Misfire
Help, my own truck is killing me! What started out as a
very intermittent glitch that was barely noticeable has
turned into cylinders misfiring and the truck still drives
but is not much fun to drive anymore. I have mostly cyl. #4
misfiring but they all will d... Trouble codes: PO300 (cylinder misfire). |
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2000 Chevrolet Astro 4.3L RAP (retained acc. pwr)
Main problem that I need help with is RAP (retained
accessory power) system is not working. Followed flow chart
to determine BCM is faulty. Replaced BCM and had reflashed
without fixing problem. There is an update flash for the
BCM RAP circuit, but no bulletin... |
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2001 Chevrolet Tracker 2.5L radiator
Hello, hopefully someone has come across this before.
Vehicle came in with a broken seam on the radiator, also
had a brown sludge like substance in the radiator. I
thought it was an trans oil cooler leaking on the radiator.
So I replaced the radiator and t-sta... |
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2002 Chevrolet Malibu 3.1L Temp gauge
the radio, A/C comp, temp gauge will go dead at times, can
restart 10 to 15 times again before the problem reapears.
Any time these systems are down if you use the power door
lock switch they will all come back online. Checked
voltages for power and ground to ... |
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2002 Chevrolet Express 5.7L batt light
Vehicle came in with an intermittent batt light on.
Replaced alternator and it came back with same problem.
After reading the posts on the aftermarket alternators, I
replaced with another new unit. The alternators are "new
generation" units that I have had ver... |
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2004 Chevrolet Express 6.0L rotors pads calipers
Hello fellow IATN members. We have a 3500 Chevy box truck.
The truck is eating up rear pads rotors and calipers every
3000 miles. The truck returns to the shop with a blown out
caliper and the rear disk rotors split into two pieces.
Just wondering if anybody h... |
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2004 Chevrolet Cavalier 2.2L No Start
Here we go again.No start,Intermitant.this car will start
for weeks at a time.seem to be losing power to fuel pump.no
codes and when running 55psi fuel pressure.I was able to
get a no start one time only and had no fuel pressure.next
time turning the key start... |
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2004 Chevrolet Tahoe 4.8L vehicle is possibly in reduced power mode, but does not show on display
need to know if anyone has dealth with such a problem, as
mentioned in the repair history? |
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2005 Chevrolet Colorado 3.5L Radio/power windows
After truck is shut off and all systems powered down.The
Radio will power back up.The "Raps" (Retained Accessory
Power Relay) is being powered back up so there is also
power to the windows and wiper switch.Customer also
complained of the horn honking on its ow... |
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1984 Pontiac Fiero 2.5L Engine
This vehicle had the engine rebuilt a while ago and had
been operating normally. The vehicle was invlolved in a
collision and the engine saw very high RPM, according to
the customer, due to the clutch having been depressed while
the engine was floored. Since t... |
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1983 Cadillac DeVille 4.1L Hesitation
FIRST THANKS EVERYONE FOR THEIR RESPONSES, JAY, JAMES, AND LESLIE, HIT IT PERFECTLY. I CHECKED ON ALLDATA WITH THE 84 CADI AND FUEL PRESSURE SHOULD BE 9-12 PSI. EVEN WITH THE RETURN LINE CRIMPED OFF THE PRESSURE WOULD NOT GO HIGHER THAN 6.5, SO WE REPLACED THE... |
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1998 Chevrolet Malibu 3.1L #1 Misfire
Thanks to all the replies that I got. Many commented about problems with head gaskets. So while I had the intake manifold off I applied compression into clyinder through plug hole and gurgling can from coolant ports in heads. I pulled the heads and sure enoug... |
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2002 Chevrolet Silverado 6.6L No Start, Poor Idle Quality
Thanks to all the 11 chaps who sent in replies on this one,you were all bang on with your diagnosis a couple of injectors were leaking around the solenoid area, not easy to spot even with oil dye and a black lamp and flying blind without a Tech 2.The customer ... |
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2002 Chevrolet Impala 3.8L MIL Lamp on
The vehicle is fixed,new MAf sensor cured it. As I said in my help request,I put a new pigtail on because the readings would be all over the board when I wiggled it. Readings were better after the pigtail,but it would sometimes read o grams per second after re... Trouble codes: p0102 (MAF low). |
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2005 Chevrolet Equinox 3.4L abs
Well guys,
Alex [...] had a great idea,(wish I'd thought of it, it seems so simple) swap l/f and r/f sensor circuits right at ebcm and road test to set code and see if it follows sensors. So that is just what I did. Drove vehicle 130 miles and no code return... |
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2008 Chevrolet Uplander 3.9L Reverse lights
Thanks for all the help everybody. We installed a relay in the left rear corner of vehicle, used the key on circuit for the rear AC blower (Yellow wire) to energise the relay, connected the hot side of the backup alarm to the reverse light wire and grounded th... |
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1992 GMC Rally 5.7L Poor Idle Quality, Cuts out, Stall
I HAVE REPLACED DIST NEW GM REPLACED THROTLE BODY COMPLETE
REPLACED COIL KNOCK ,PCM , CAP ROTOR WIRES , AND NO CHANGE IT ONLY HAPPENS IN CLOSED LOOP SO WERE GOING TO ORDER A PROM AND SEE WHAT HAPPENS. |
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1995 GMC Jimmy 4.3L No Start, Cuts out, Stall
well, we ended up replacing the fuel pressure regulator. we drove this thing for about 20 miles without so much as a stumble. we let it sit and run for about a half hour and drove it some more. no problems. we asked the customer about the fuel filter and he ad... |
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2000 GMC Jimmy 4.3L 4x4 light on
found some corrosion at module. replaced module and wiring pigtail. all is well now. thank you for all the replies. |
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2001 Oldsmobile Silhouette 3.4L cruise control
Hey, all. I have found the fix thanks to your help. As I was removing the air filter box, I found 4 wires in the pcm harness that were rubbed through. I found this in the harness as it comes out of the pcm and loops to the inside of the left head light. I repa... |
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