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Prev Professional Automotive Repair Technical Discussions for August 8, 2011
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Open Help Requests for GM
Help Request Answers
2003 Buick Century Limited 3.1L Poor Idle Quality VIN: 2G4WS52J13
This car came in with the idle at approximately 1500-2000 rpm at idle. The customer had been telling me that it would do that every once in a while. Finally it did it and stayed. When we first scanned the data we noticed that the tps % was moving around, from ...
1994 Cadillac Eldorado 4.6L front end VIN: 1G6EL12Y8R
hello every one. thank you for taking the time to read this. this cadi came to me with the complant of clicking when turning to the right. it is a loud metal on metal almost tin sound witch only accurs when turning right at speeds above 10 mph. the noise is no...
2002 Cadillac DeVille DHS 4.6L no forward or reverse VIN: 1G6KE57YX2
Cadi experts we pulled the transmission on a 2002 DeVille DHS, and replaced the rear main seal on the motor. Now the car runs great with no oil leak only problem is that when we put it in gear the PRNDL indicator on the dash doesn't move and neither does the c...
2003 Cadillac DeVille 4.6L Misfire VIN: 1G6KD54Y03
We installed the boot and the car is missing badly. The scanner says code PO300 but under miss fire data it shows #5&6 cylinders missing but no code for them. I did a compression test on #6 and it shows 173psi and has injector pulse and did a fuel pressure dro... Trouble codes: P0300
2004 Cadillac CTS 3.6L MIL Lamp on VIN: 1G6DM57794
Replaced throttle with new design. Cam with replacement harness. No instructions with harness. Matched the numbers ' 1-6. They are in different locations. but the numbers matched. Now the reduce power light is on and wont run right. Has anyone else had to repl... Trouble codes: P0221 (high volt), P0222
1984 Chevrolet Corvette 5.7L No Start VIN: 1G1AY087IE
Rear (drivers side) injector pours fuel when turn key on, the other does not... does it even with injector unplugged.. I suspect stuck pressure reg stuck... Have rebuild kits for pressure reg on hand, but not sure which way to go. Thanks in advqance, Jerry
1993 Chevrolet Astro 4.3L No Start, Stall VIN: 1GNEL19W3P
Hi, we have replaced 6 CPI injector assemblies in this vehicle. Some have failed after 18 months or so while the last one failed after 2 months. The fuel pressure tests good each time as well as injector pulse. The main symtom each time is the vehicle wont sta...
1999 Chevrolet Corvette 5.7L Cuts out, Stall VIN: 1G1YY22GXX
Customers concern now is when the car put into gear the Vehicle stalls. We have not been able to get the car to act up. Every time that the vehicle stalls it will do it multiple times. Eventually it will start again an have to issues. It seems to do it mostly ...
2009 Chevrolet Colorado LT 2.9L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1GCCS14989
vehicle came in cause it stalled on side of road. got to shop started and ran ok. pulled codes. ran cam actuator test all seemed ok. cleared codes to find it will second trip set mil for p0017. scoped crank cam and actuator sol. all looked good exept for the c... Trouble codes: P0017, P0506, P069E
1979 GMC C3500 Sierra Classic 7.4L Stall VIN: TCS3492532
Truck starts and runs great the truck sits for long periods of time. as soon as it gets a little hot won't idle have to power brake to keep running or will stall. fuel psi 7 to 8 fuel new. Have tested coil, and pick up coil when cold not when hot? truck has al...
1995 GMC Jimmy SLE 4.3L No Start VIN: 1GKDT13W3S
No start has good spark good compression good fuel will soak plugs but still just wont start i am at a lost have installe three sets of plugs , ignition cables, cap & rotor, new cpi injector and a new pcm checked timing dead on cut exhaust to rule out clogged,...
1994 Saturn SL2 1.9L No Start, Cuts out, Stall VIN: 1G8ZK5578R
Thanks to all the guys in advance. This Saturn is driving us crazy,came to us with service soon light on and codes 19,42,48, and sometimes will crank long time before it starts and sometimes sputters and dies. No problem, we advised customer to replace the (IC... Trouble codes: 19 (6X Signal fault.), 42 (Bypass line error), 48 (Info flag - reference pluse error.)
2002 Saturn L200 2.2L No Start VIN: 1G8JU54FX2
I'm working on this Saturn that comes with no start, and no BCM codes, no ECM codes, cranks OK and good fire and fuel pressure, but no Injector pulse, Security Light (theft) Off all the time and never comes on, I did test it with Tech2, and still won't illumin...
2007 Saturn Vue Green Line 2.4L MIL Lamp on VIN: 5GZCZ33Z87
Hi guys got an 07 saturn vue hybrid. i cant locate my code sheet at the moment sorry.the cust and vehicle left the shop. the cust is kind of a (scitzo)but anyway whats happening aparently is when shes driving the vehicle the speedo goes crazy the abs light goe...

Fixes & Summaries for GM
Fix/Summary Answers
1987 Cadillac Eldorado 4.1L Electronic VIN: 1G6EL1186H
I have not fixed this car yet, any way thanks every one, especially Juan [...], I am trying to order a used Instrument Cluster, I think Cluster is the problem, because when I disconnect Inst. cluster the Climate Control went blank, there is a net work commun...
1999 Chevrolet Corvette 5.7L Pressure Switch VIN: 1G1YY22G9X
We removed trans replaced input drum assembely, pump and the (4th) new pressure switch assembly. I test drove and shifted it manually many times, worked great. It's gone so far so good.
2001 Chevrolet Corvette 5.7L turn signals VIN: 1G1YY22G81
thanks for all the responses. we replaced the hazzard switch .so far so good.
2002 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1GNDT13SX2
Well thanx to thows who replied good input, I had a feeling that the cam sync sol. could be the problem, no oil in plug , cust states that only used 5w30 motor oil. the way I diag. this thing is to remove it get out the torch create a heat deverter w/ sheet me...
2004 Chevrolet Silverado 2500 HD 6.6L shocks VIN: 1GCHK23204
the customer hasn't brought the truck back at this time. thanks for all the replies, I think that ruben, anthony, & carter are on the right track, we have looked at several trucks same year make & model it seems that they are setting lower in the front end. I...
2001 Oldsmobile Alero GL 3.4L abs sensor VIN: 1G3NL12E21
saw vehicle other day abs lights have been off. assuming something played with while testing lives a little bit longer. tire light was still on when it came in for a oil change the reset in the left ip fuse box turned off the tire light had to do a different s...
1994 Pontiac Firebird Formula 5.7L Fuel VIN: 2G2FV22PXR
I want to thank everyone for their input on this situation. I've replaced everything in the fuel system. Tank, fuel pump, sending unit, purge valve, purge solenoid, fuel cap, evap canister, and I cleaned the tank pressure relief valve (can't locate a new one)....
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