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Professional Automotive Repair Technical Discussions for January 29, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2000 Buick Park Avenue 3.8L Tire pressure monitor VIN: 1G4ACW52K4 The "tire pressure low" message is displayed in the drivers info readout. I have checked the tire pressure and they are all the same, about 35 psi. After clearing the message several times it still sets "tire pressure low".It takes about 1 week to set. |
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| 1994 Cadillac Seville SLS 4.6L Poor Idle Quality VIN: 1G6KY529RU came to idling always at 1200 rpm isc motor clicking code 55,set in pcm, went through chart found bad isc motor replaced, also cleaned bore while off for isc motor, cleared code, set override for tps idle re-learn, now idles 1700 rpm and will not slow down, co... Trouble codes: 55 (tps memory out of range), 80 (no tps learned value) |
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| 1999 Cadillac Seville STS 4.6L cluster, radio, seats, security, windows, etc VIN: 1G6KY5491X Please Help! If battery is disconnected then reconnected everything works fine for 1-3 days. When problem develops, many electrical acessories dont work. Pwr Windows, Security System, Pwr Seats, Radio, Dash (Cluster). The car will run and drive fine. ABS - Sec... |
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| 1991 Chevrolet Lumina Euro 3.1L temp reading VIN: 2G1WN54T3M hi all. i have replaced the water pump, thermostat,temp sender and sensor,had the rad cleand and flushed the heater core and replaced the rad cap. i have even filled the system under presser and under a vacuum i am about 100% sure that ther is no air lock in t... |
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| 1995 Chevrolet Lumina 3.1L heater core VIN: 2G1WNS2M3S car has come back with repeated heater core failures ran ground wire last time it will last 30 days |
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| 1995 Chevrolet K1500 5.0L Clutch VIN: 2GCEK19H7S Vehicle came in for a new clutch, after clutch installation, hydraulic system had air, attempted to bleed using various methods including my phoenix injector to no avail. Replaced clutch master and slave still no luck. It has a very low spongy pedal. (pulled t... |
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| 1995 Chevrolet Corsica 3.1L Stall, HARD START VIN: 1G1LD55M9S first timer looking for some help, car drove in with a hard start poor run complaint. after some testing & look at codes map reading was way low on the scanner. checked voltage at the ecm while appling vac. reading showed good on the vantage but not through sc... |
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| 1996 Chevrolet Monte Carlo Z34 3.4L Poor Idle Quality VIN: 2G1WX12X9T The customer complaint is that the idle is smooth but unable to find the proper RPM he will come to a stop the RPM's will stay at 1600 or 1400 then the next time it will be 1100-1200 after the stop it may go up or down in RPM slowlly, not like a rapid surge.Th... |
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| 1999 Chevrolet Cavalier 2.2L speedometer VIN: 1G1JC1241X Hello partners I have this problem with 99 cavalier, vehicle came with inoperative speedomer, no mil, no codes. After hooking-up scanner and road tested, found that scanner showed miles (speed sensor goog i supossed) and when turned ignition on ABS light did n... |
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| 2001 Chevrolet Astro 4.3L transfer case VIN: 1GCDL19W51 hello, please help, I have a "service awd" light on. my scan tool will not pull anything other than generic obd2 codes. Luckily I was able to borrow a tech two for 10 minutes and came up with a code c0310. I checked fuses, all are ok. looked at all connections... |
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| 2001 Chevrolet Silverado 2500 HD 6.6L Poor Fuel Economy VIN: 1GCHK23152 Hi Guys, This is a diesel 6.6 that has fuel in the oil. To me this sounds like a leaking fuel injector but the informaton that I have been able to find has been verry limited. I cant even find info on how to test the injectors. I have talked to other techs th... |
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| 2002 Chevrolet Tahoe LS 5.3L FUEL GUAGE COOLANT TEMP GUAGE no communication w VIN: 1GNEK13Z42 I have a 2002 4wd Tahoe police package. I am having problems w/the dash. I have fuel level guage inop, coolant temp guage inop, park neutral drive indicator inop, the message center is saying security, when the vehicle does not have theft deterent. I also have... |
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| 1996 Geo Tracker 1.6L Hesitation, Cuts out, Stall VIN: 2CNBJ1866T truck running well shut off left for a few hours when cust returned starts and idles but dies when trying to rev it up no back fireing but sounds like running on 1 cyl if you hold gas to floor spark ok,compression ok,fuel pressure on spec,injectors pulsing eve... |
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| 1998 GMC K1500 Sierra SL 5.7L oil guage VIN: 1GCEK19R6W customer came in with oil pressure guage reading low at idle and every so often would come up and drop down. we replace switch and would work a little better but still affected. came back and replace switch, harness and relay still reading 0 at idle, as soon a... |
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| 1995 Oldsmobile Cutlass Supreme SL 3.4L Poor Idle Quality VIN: 1G3WH52X4S Customer complains of xtreme high idle when first started (COLD). |
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| 1995 Pontiac Grand Prix GT 3.4L Timing belt VIN: 1G2WJ52X9S The timing belt and tensioner were replaced as normal maintenance. After about a thousand miles the engine developed a loud over tensioned timing belt whine. On disassembly the belt was exceedingly tight and the bracket behind the tensioner was broken. The bel... |
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| 1999 Pontiac Sunfire SE 2.4L overheats VIN: 1G2JB524XX this vehicle is in for a overheating problem when overheating occurs the fan is not coming on. so my diagnosis is as follows. verified that engine does overheat. when overheating occurs the fan does not come on, checked for codes and none were found. when i tu... |
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| 2000 Pontiac Montana 3.4L No Start, Poor Idle Quality, Stall VIN: 1GMDU23E6Y Hi group, This one is weird. Car is very hard to start cold. You must hold the gas pedal partially and control the idle yourself. It won't idle on it's own. Sometimes it is high and other times it's low. Check for TSB's. Found 01-08-45-005A that indicates the... Trouble codes: P0300, P0410, P0506, P0507 |
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| 2000 Pontiac Bonneville SE 3.8L Radio VIN: 1G2HY543KX I need some help from the GM people. The car has steering wheel controls and am fm cass and cd radio, and every so often It seems worse when cold. The radio will stop playing and start switching from cd to radio and from radio to cd. Then it seams to start wor... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Cadillac Escalade 5.3L Misfire, MIL Lamp on VIN: 1GYEC63TO2 I want to thank all who replied. I thanked the ones who got it right individually. Some replys said to check the fuel rail for contamination. I did, and none found. One said to check the injector harness on that side. No problems found there either. Another on... Trouble codes: P0300. |
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| 1996 Chevrolet Cavalier 2.2L engine VIN: 1G1JC5243T after reading replies I borrowed a tech 2 and verified lock cylinder was good I replaced the ipc and the car has been starting also the loss of power the car intermittently had is no longer there thanks to all that replied the information was very helpful Fr... |
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| 1997 Chevrolet K1500 Cheyenne 5.7L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 2GCEK19RXV thanks to all that responded, especially those who pointed towards the fuel filter. sometimes we forget the basics and when a problem like the pressure bleed down is present we jump in to far. we replaced the fuel filter 7 the running problem has been correcte... Trouble codes: P0131 (ho2s b1s1 volts low), P0135 (ho2s b2s1 volts low). |
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| 1999 Chevrolet Tracker 2.0L MIL Lamp on VIN: 2CNBJ13CSX Unfortunately I came to no conclusions on this tracker. I contacted the Identifix Hotline. They ask me to check if I was getting a square wave out of the #7 pin on the DLC, I was not, so they told me to disconnect the ABS module and see if I had a square wave ... |
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| 2003 Chevrolet impala 3.8L battery VIN: 2G1WH52K13 I had sixs replies to my help request. One said that maybe the car was parked on a hill causing the hood light to stay on. Another suggested that even though the on star was not connected the onstar could still be looking for it.I drove the car for ten days wi... |
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| 1997 GMC C3500 Sierra SL 7.4L lock -up convertor VIN: 1GTHC39J9V Truck has not returned, but continuing research reveals that this could be normal. Rumor has it there is a PCM reflash that holds convertor off until over 70mph for trailer towing. If anyone knows more about this, please let me know. Thanks for all the replies... |
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| 2003 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK24103 well I got this engine running. I didn't have any fuel pressure, so I used the chart engine cranks but won't run. There is a fuel test that you run on the injectors on each bank. The bank that is putting out the most fuel while cranking, is the problem child. ... Trouble codes: P1093 (Fuel Rail Pressure sensor circuit). |
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| 2001 Oldsmobile Intrigue GLS 3.5L Check Vehical light & PCS lights on VIN: 1G3WX52H31 Hi All. I want to thank those who replyed. One said that I could not reset the body computer with my Snap-on Modis, but that was not the case here, SOME will, some will not, Snap on Blaco division is working to bring out a updated scanner for the Modis, it s... |
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