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Professional Automotive Repair Technical Discussions for March 31, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1996 Buick Park Avenue 3.8L engine VIN: 1G4CW52K7T Hi guys, I have a real weird one here. This vehicle came in making a noise consistent with a bad roller or ball bearing in the motor. Listened to it with a stethoscope and had a tech remove first the serpentine belt and then disconnect the torque converter, st... |
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| 1989 Cadillac Fleetwood 4.5L crankshaft VIN: 1G6CB515XK Attention 4.5L experts. Hi guys. customer came in complaining of engine knocking noise. with a stethiscope it sounded like it came from the tensioner although it wasn't a tensioner type noise. replaced tensioner with no change in noise. checked harmonic balanc... |
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| 1986 Chevrolet Caprice Classic Brougham 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Poor Fuel Economy VIN: 1G1BN69ZXG the engine at cold start-up,starts easily and revs to about 1800rpm for a short period and then slowly comes down to normal idle speed,shortly after it does this,check engine light comes on,code 45,engine running rich.the engine i feel is lacking power and has... Trouble codes: 45 (rich exaustreplace 02 sensor) |
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| 1994 Chevrolet S10 Blazer Tahoe 4.3L Poor Idle Quality, Cuts out, Misfire, hard starting VIN: 1GNCT18Z2R First post , bear with me. This Blazer came in barely running. Customer said barely made it home the day before and would only run up to 25 mph. When he brought it to the shop, said it ran fine for about 5 miles and suddenly started running bad again. Pulled a... Trouble codes: P0117 (coolant temp low), P0123, P0139, P0327, P0328 (Knock sensor problem), P0320 (Ign control error) |
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| 1998 Chevrolet S10 2.2L stop lights VIN: 1GCCS19410 Hello iATN members, I had this truck in last week. The complaint was that it had a dead battery one night after work. He said that he then found out that sometimes after he parks it, he might find that the stop lights are on. He claimed that if he pulls on the... |
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| 2000 Chevrolet Venture Warner Bros. 3.4L Fuel Gauge VIN: 1GNDX13E7Y The Fuel gauge will read totally full or totally empty with no fuel level readings in between. Unhooking the sending unit connector changed nothing. I have read the TSB on water entering the connector but no water or corroision in the connector has been found.... |
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| 1996 Geo Metro LSi 1.3L No Start VIN: 2C1MR229XT The coil has a strong blue spark going into the distributer but it has no spark coming out. No spark from the plugs, the wires, and none out of the towers of the cap. It seems like a bad pick up coil. I can't find a test for it and it is stamped do not remove.... |
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| 1999 GMC C1500 Sierra SLE 5.0L extended cranking VIN: 1GTEC19M9X Intermittently extended cranking followed by a rough run and excessive fuel odour and black smoke. Has passed drive clean with ok values between the intermittent concern with no excessive values. Checked crank sensor RPM values during cranking - ok and fuel pr... |
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| 1989 Oldsmobile Cutlass Ciera 3.3L Poor Idle Quality, Hesitation VIN: 1G3AJ51N7K I have a olds that runs good when in gear but has a idling problem in park or neutral. It has a hard time starting until you give it about half throttle. Also if you step on the throttle when it is in park it has a bad hesitation then when you let up on the th... |
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| 2000 Oldsmobile Intrigue GL 3.5L MIL Lamp on VIN: 1G3WS52H9Y Hi Olds Techs. I did some front end work and brakes on this Intrigue. The customer said the Service Engine Soon light had been on for a while. I scanned using a Snap On scanner, and got the P0410. Cleared it and checked around under the hood. I thought the wir... Trouble codes: P0410 (Secondary AIR Problem) |
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| 1990 Pontiac Sunbird LE 2.0L Rocker Arm VIN: 1G2JB34K9L This Vehicle Came To Us Running Rough And Backfiring Through The Intake (Sounded Like A Flat Camshaft). We Checked Compression And Found All Four Cylinders To Be At 125 - 130# Compression. Removed Valve Cover And Found Rocker Arm On #4 Cylinder Exhaust Valve T... |
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| 1995 Pontiac Grand Am SE 3.1L 3.1 Engine replacement VIN: 1G2NE55M2S This Grand Am needs a motor -- Had intake gasket problems which the customer neglected.. Now has bearing /oil pressure complications. Alldata says drop the complete driveline out the bottom. Is this absolutely necessary or can the motor be snaked out the topsi... |
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| 1997 Pontiac Grand Prix GTP 3.8L abs module VIN: 1G2WP1212V when this car is in reverse...and the car moves over 5mph the abs shuts off and gives a code...low system voltage..it does not do it everytime...i watched it on a scanner..the voltage does drop from 13.4 to 2.4 volts...system voltage stays above 13.5 volts.(ba... |
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| 1998 Pontiac Firebird 5.7L injector shut down VIN: 261FP2266W customer says, car ran good till went though fence and ditch.now car won't start. checked out the sensors for the theft system, still nothing happeneds. tryed rest procedure nothing has changed. car will start and fire the noid light then it kills it. car dose... |
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| 2003 Pontiac Grand Am SE2 2.2L Radio Locked VIN: 1G2NF52FX3 We have a 2003 Pontiac Grand Am which we did some body work where the battery was outof the car for a while and now the radio says "Locked" underneath the time display. I found one reference to holding down two station preset buttons at the same time (the top ... |
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| 1997 Saturn SL1 1.9L vent temp Hi guys, I inherited this one from another tech who charged it then gave up. The pressures didn't match anything I knew about but I got the goahead to replace compressor,expansion valve, and filter, with no change. I tried overcharging it and finally got 300 ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1995 Buick Century Special 2.2L Unknown VIN: 1GN4AG5545 thank you everybody for their help. i replaced the tcc solenoid and the problem hasnt come back since. thanks again |
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| 2002 Buick LeSabre Custom 3.8L starter VIN: 1G4HP54K62 Well, vehicle has not had any problems since it was here. I dont have a clue as to what the provblem was, but I did get a few responses about bad body control modules. This vehicle has 3 body control modules on it & with it not acting up at all could not diagn... |
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| 1994 Cadillac Seville SLS 4.6L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1G6KS52Y2R finally got vehicle repaired. im going to explain my thinking and how i went about diag. it so that it may help somebody in the future. I had 2 codes that came up right away after clearing dtc's one of them was 24x signal and a est problem my thinking was that... Trouble codes: 23 (25 -), 25 (47 -), 47 (83 -), 83. |
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| 1997 Cadillac Seville SLS 4.6L Misfire, MIL Lamp on VIN: 1G6KS52Y8V All replies suggested cleaning carbon from the cylinders.We cleaned the carbon and the car seems to run great.only time will tell if it needs rings or not.Thanks for the info. Trouble codes: 300 (random misfire). |
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| 1994 Chevrolet K1500 Cheyenne 6.5L No Start, Cuts out, Stall VIN: 1GTEK19S7R I had 4 replies, all were for rebuilding injection pump. did some checking with the rebuilder and there is a driver cooler that is remotely mounted on intake manifold, still costing 400.00 but 20 min install time. if the rack is worn out will causing module to... |
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| 1996 Chevrolet Cavalier 2.2L wipers VIN: 1G1JC1244T Dear iTAN helpers, Thank you for your quick and many replies! I found that a replacement of any part would not have fixed the problem with these wipers. The parts I tried were the: Wiper Cover #[...], and Wip... |
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| 1996 Chevrolet S10 2.2L engine VIN: 1GCCS1447T Thank you for all 8 replys. Several said they had problems with cracked heads. We removed the head and found a broken head bolt. The head bolts were all new the last time we put it together. So Im not sure why one broke. We examined head carefully and sent it ... |
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| 2002 Chevrolet Impala 3.4L Starting VIN: 2G1WF52E42 Thanks to all who replied, really got some useful info to try but cust has not returned with veh. Thanks again |
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| 2004 Chevrolet Trailblazer EXT North Face 5.3L Lighting VIN: 1GNET16P14 Thanks for all the help and sugestions. The customer wants to wire the tail lights with diods so that is what we are going to do. Many great responses and I am very thankful for you time. |
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| 1998 GMC Jimmy Envoy 4.3L No Start, Stall VIN: 1GKDT13W5W This Jimmy would never stall when in the shop and has been back on the road for 3 weeks with out stalling. Will have to wait till problem returns. |
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| 2004 GMC Envoy XL SLT 4.2L Amplifier VIN: 1GKET16S34 Sorry its taken so long to close this. Well,after about 5 days worth of on and off testing (24 hours warr. time!) I never was able to recreate the short to ground in the speaker circuit. There fore I tore down the interior and inspected the harness from the ... |
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| 1984 Oldsmobile Cutlass Ciera Brougham 3.0L Poor Idle Quality, VIN: 1G3AM19E3E Per several recommendations went ahead and set lean mixture screw to 3-1/2 turns from seated and rich stop to allow 1/8' travel of metering rod plunger. Mixture Control Solenoid dwell, as measured at green 1 pin connector by carb, should be 30 degrees to 40 de... |
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| 1998 Pontiac Sunfire SE 2.4L Daytime Running Lights VIN: 1G2JB52TXW I wish I could say that the car was fixed but I can't. Several people suggested to look for resistance in the wiring from the relay to the lights and that corrosion was problem in the left front fender area. This was not the case with this vehicle. At this poi... |
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| 1993 Saturn SL1 1.9L pinging-timing advan VIN: 1G82H5592P Didn't have a chance to fix it, Customer has elected to sell the vehical. He has said the pinging is not as bad as it was, so could be carbon? Still have no reason why it's timing was so far advances and yet it ran so well. Trouble codes: F1AG, 53 (Electronic spark control over max value), F1AG, 83 (low coolant). |
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| 1998 Saturn SL2 1.9L High ecm voltage VIN: 1G8ZK5270W Thanks from those who responded. One tech wrote in to let me know Saturn warranties their PCM for 8 years, 80,000. Believing a PCM failure, I advised the customer to check with their dealer for possible warranty repair. Have not found out the outcome at this t... Trouble codes: P0560, P0563. |
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