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Prev Professional Automotive Repair Technical Discussions for October 17, 2012
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2001 Buick LeSabre Limited 3.8L Harmonic Ballencer VIN: 1G4HR54K21
Ok we have a Buick 3.8L with code P0366 fails hot no restart and no tac. Cold or cooled off runs fine and of course no MIL now, however customer said MIL came on once or twice. Sensor is bad need to be replaced, no big deal. BUT we can't get the bolt out of th...
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2002 Buick Century Custom 3.1L Stall VIN: 2G4WS52J32
This car came in with a bad miss.Scanned it at the time I had 2 codes PO300 And P1189... Checked the misfire count and #1 Cyl was highest.Changed the plugs, wires and fuel filter and ran much better.Let the car set for awhile and came back and started it and i... Trouble codes: P0300, P1189 (Oil Switch Signal Circuit), P1626 (Theft Deterrent)
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1986 Chevrolet C10 Scottsdale 5.0L 1-2 3-4 shift VIN: 1GCDC14H5G
We just recently installed a 350 Chevrolet engine that customer bought off internet. It has mild performance cam- .465"/.488" lift and duration at .050" is 224/234. It has 340 h.p. and 375 ft/lbs torque. High performance distributor with Holley 600cm carbureto...
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1998 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality, Surge VIN: 1GCEK19R4W
New customer, unknown history, truck runs great above 700 rpm but idle will fluctuate 400 rpm have check fuel pressure, map, have installed know good maf, tp, and iac, checked trans range switch and showed in park, O2 sensors are both moveing good, Cmp retard ... Trouble codes: P0440 (Evap), P1631 (Theft)
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2001 Chevrolet S10 2.2L No Start VIN: 1GCCS19551
Vehicle comes in as a no start. backfires through intake upon cranking. Check compression all cylinders below 90 except#3 it has 110. We are thinking timing chain. Pull the cover timing dead on. Put air into cylinders # 4 leaking air out exhaust. Pull head fou...
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2005 Chevrolet Cobalt LS 2.2L MIL Lamp on
I have this cobalt with a 2.2 that has a code 1516. My problem is after following the diagnostic flow chart from shopkey when Iwas supposed to check across the motor contol wires with a test light mine lit and wires were not shorted to power so replaced thrott... Trouble codes: P1516
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2006 Chevrolet Uplander LS 3.5L No turn signals VIN: 1GNDV23L86
Thanks in advance for any response. Intermittently both left or right turn signal do not work in front or rear. The turn signal indicator flashes fast in both directions and I believe the hazard flashes the indicator but the lights also do not work (Have not ...
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2008 Chevrolet Silverado 1500 LTZ 6.0L No Crank VIN: 3GCEK13Y48
THE CAR HAS NO CODES.IT IS COMUNICATING WITH ALL THE MODULES.IT IS GETTING A CRANK REQUEST TO THE PCM.THE PCM DOES NOT SEND SIGNAL TO THE STARTER RELAY. If we GIVE 12 VOLTS TO THE SIGNAL WIRE FROM THE PCM TO STARTER RELAY,IT WILL SPIN OVER,BUT NOT START(with i...
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2009 Chevrolet Tahoe LS 5.3L MIL Lamp on, P1174 VIN: 1GNFK03069
Hi all, this is one of our ems trucks for moving people and supplies around. P1174 came on about 200 miles ago and i looked it over and didnt see anything wrong. Made note of code and date in door jam and cleared codes. Less then 100 miles code is back. Ordere... Trouble codes: P1174 (fuel trim cylinder balance bank 2)
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1993 Geo Storm 1.6L Stall VIN: JB1RF2360P
Thanks for the help in advance. Got this sweet 93 geo storm that came in for a no start. Customer has been doing his own work on it, had low fuel pressure, pump wasnt installed properly. Fixed that problem and vehicle started and ran for about 5 min. then stal...
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2003 GMC Envoy SLT 4.2L all lights VIN: 1GKDT13S63
Hello! All lights on this GMC Envoy will flicker at idle sometimes, and everytime the engine is above 1800 rpm. All grounds for lighting and pcm, bcm, and all interior grounds have been cleaned. All main connections at alternator and fuse boxes have been clean...
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Fixes & Summaries for GM
Fix/Summary Answers
1986 Cadillac DeVille Touring 4.1L electronic climate control VIN: 1G6CD6987G
so we chased some wires and disconnect control heads but turned out to be the bcm thanks all for the info
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2009 Cadillac Escalade 6.2L front suspension VIN: 1GYFK23289
Most replies suggested low tire pressure and/or low profile tires as the cause of the rough ride, but the tires/wheels were on the vehicle prior to this problem. I did not think it was as simple as shocks. But, it was as simple as shocks. I let the complexi...
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1977 Chevrolet Camaro 5.7L Gear Selection
Thanks to all who offered help. Randy from Pennsylvania, identified the problem. The pork chop plate above the shift linkage inside the transmission had a shift kit (Spacer between the transmission and this pork chop plate)on it with retaining bolts that had w...
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1999 Chevrolet K3500 7.4L No Start VIN: 1GBJK34J7X
Thanks again for the help! I started over still had the fast fuel pressure bleed off from the injectors (with the return blocked) exhaust open, in time with good compression. rechecked spark at plugs and had fire but it appeared to be weaker than i had previo...
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2007 Chevrolet C6500 Kodiak C6E042 7.8L Parking VIN: 1GBJ6E1357
After shoe replacement still did not hold tight enough, replaced actuator cam & plate, both had slight, slight wear marks, but apparently enough to cause a problem.
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2002 GMC Envoy SLE 4.2L Air Conditioning VIN: 1GKDT13S32
It appears that we somehow got some air in the system during the last recharge. We re-evacuated and charged the system and the pressures and temps all went back to normal range.
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2008 Pontiac Wave 1.6L MIL Lamp on VIN: KL2TD55638
thanks for all the replies,turns out the cat converter wasn,t lighting off and cleaning the gases properly,dealer is putting in a new cat under warrenty Trouble codes: P2096.
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