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Professional Automotive Repair Technical Discussions for December 23, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1987 Buick Regal GNX 3.8L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 1G4GJ1179H has a hard start when cold. need to crank several times.when finally starts it surges,bucks and backfires badly. After one to two minutes idles perfectly.During road test after warmed up has excellent power,hauls ass. No MIL on at all. No codes.Checked fuel pr... |
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| 1994 Buick LeSabre Custom 3.8L Misfire VIN: 1G4R52L1RH hello techs/ were having problems with this buick and have exausted all our resourcees hope someone can help. the vehecle seems to misfire under light load 45 to 50 mph . tcc is engauged and in 4th gear .tcc slip is50rpm. witch we feel is ok we have replced se... |
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| 1993 Chevrolet S10 Blazer Tahoe 4.3L heater core VIN: 1GNDT13WXP On this blazer I am wondering if any one has had the same problem. The vehicle vent temp. is only reaching 80-90F. Should be 120-150. Heater core was replaced last year. He had an aftermarket one installed. My question is if anyone has had problem with afterma... |
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| 1997 Chevrolet K1500 Cheyenne 5.7L Misfire, MIL Lamp on VIN: 2GCEK19R4V mil is triggered. code p0300 random cylinder misfire. under misfire data cylinder #5 is most prevalent misfire.off the scale at an idle.other cyliders may show 0-6 misfires.under a load in gear, once 850 rpm is reached misfire is non -existent.compression test... Trouble codes: P0300 (random cylinder misfire) |
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| 2000 Chevrolet Impala 3.8L MIL Lamp on, cant fill fuel tank VIN: 2G1WH58Y92 Vehicle came in about 3 weeks ago and said he could not fill up the gas even though the tank was empty. I removed the tank and inspected the filler neck and tank and saw no problem. The vehicle also had a PO440 code. I did find a lot of dirt in the vent soleno... Trouble codes: P0440 |
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| 2000 Chevrolet Silverado 1500 4.8L Poor Idle Quality, Misfire VIN: 2GCEC19V7Y Truck idles real rough on cold start up. It will flare on start to 1200 rpm, everything looks good on the scanner then o2s all go to less than 100 mv. Idle gos very rough and cyl 5 and 6 show misfire. If the ect sensor reads over 100 misfires go away and engin... Trouble codes: P0300 |
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| 1999 GMC K1500 Suburban SLE 5.7L No Start VIN: 3GKFK16R6X Need some help here, customer is getting frustrated! This truck intermittantly will crank & not start. He disconnects the battery for 10 minutes & then it starts right up. Thought I had it last time with crank sensor a month ago, but it's back again! I'm think... |
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| 1991 Oldsmobile Cutlass Supreme 3.1L Poor Idle Quality, Stall VIN: 1G3WR51T1M vehicle will not idle unless you create a vacum leak replaced iac and cleaned throttle by pass passage confirmed egr is not sticking on. car will run if we work the throttle and allow air into intake. o2 sensor reads rich on datastream and car is running rich.... |
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| 1994 Pontiac Grand Am SE 3.1L Stall VIN: 1G2NE13M2R this is my dad car. the car stalls out when you apply brakes. ( car can be in gear, or park)i tested the batt found bad .replaced with new one, also replaced alt. ran good for two days did not stall. ran emission test car passed. then problem returned |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1991 Buick Regal Custom 3.1L coolant level VIN: 2G4WB54T3M Thanks for the information.Over 50 members have responed with the majority leaning towards intake gasket problems.The rest listed head problems. This being a school project I redid the pressure test to find the coolant hose under the throttle body with a small... |
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| 1995 Chevrolet Cavalier Z24 2.3L No Start VIN: 3G1JF12DXS Happy holidays all. I am closing this one guys without a fix.I was unable to find the correct wiring diagram for this mismatch.As mentioned prior; this has a 2 connector ecm.All diagrams for 94 and 95;2.2 or 2.3 mtrs show 3 (Three) connectors at ecm.Special ... |
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| 2000 Chevrolet Impala 3.4L Gauge Cluster VIN: 2G1WF52E6Y Okay guys, this is a strange one. The day after I posted my update, I went out to bring the car in and the battery was dead. I jumped it, and guess what? The gauges started working normally. I have battery drain problem now. I charge the battery, and started t... |
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| 2000 Oldsmobile Alero GL 2.4L Steering VIN: 1G3NL52T8Y I only recieved only received three replies and I would like to thank you.From info that I recieved and from what I have been able to diagnoise I am going to have to let it get worse. I don't like throwing parts at a problem. THANKS AGAIN EVERYONE |
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| 1998 Pontiac Grand Prix GT 3.8L Cuts out, Stall VIN: 1G2WP52K7W The car died on a road test close enough to the shop so I could coast into the lot.I did not touch anything,even left it in drive with the key still in the run position.Scanner still had no communication.Lifted the pcm out of it's compartment and tapped it,sti... |
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| 1999 Saturn SL1 1.9L speedometer, tach VIN: 1G8ZG5280X The 'fix' on this Saturn was in fact to ignore the cluster problem. The customer was really concerned with the rough AM running problem. I put a new CTS with harness and performed a basic tune-up with new plugs and wires. Two mornings in a row the car has ran ... |
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