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Professional Automotive Repair Technical Discussions for September 3, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1980 Chevrolet Corvette 5.7L A/C System VIN: 1Z878AS439 Car came in to have a/c retro-fitted to 134, had no freon in it when we got it. Did the retro and charged system seem to work fine for about 2 days then blowing warm. When it came back compressor was not working replaced compressor and orifice now it will only... |
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| 2003 Chevrolet Silverado 2500 6.0L Surge, Cuts out, Stall VIN: 1GCHK24U23 hello iATN members... we have this chevy 2500 HD no engine codes ( just ABS code). customer couldn't get the fuel filter off. thinks he had a problem with fuel. we changed it check pressure , its @ 59 psi. truck still @ 30 mph cuts out turns on doors locks fre... Trouble codes: C0055 (rear speed sensor) |
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| 2005 Chevrolet Equinox LT 3.4L A/C compressor VIN: 2CNDL73F75 Hello GM techs. This 2005 Equinox came to me 3 months ago with the complaint that the A/C was not working properly. I found that it was blowing 70 deg out of the center vents (in May, not very hot yet) but would drop into the 50's by raising engine RPM. I firs... |
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| 2005 Chevrolet Silverado 1500 4.8L front axle 4x4 actuator VIN: 1GCEK19V25 truck came to us with a problem engaging the front axle into 4Hi while moving. if you come to a stop it'll engage just fine, but if you're moving at any speed it'll just continue to ratchet/grind and not engage. replaced front axle actuator, made no difference... |
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| 2007 Chevrolet Impala LT 3.9L broken active lifter VIN: 2G1WC58RX7 Vehicle had constant miss- running compression showed 0 on #5.Teardown indicated problem with #5 exhaust lifter which is controlled by ECM & VLOM. New lifter not available, but GM has a kit to eliminate active computer controlled lifter system.Engine has to be... |
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| 2008 Chevrolet Uplander 3.9L a/c VIN: 1GBDV13W48 well I have this 2008 uplander and it does weird stuff for my customer the a/c will work great for 3 1/2 hrs then shut off and wont work just blows hot , the other thing is sometimes the doors will unlock and lock while driving I have looked at this van many t... |
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| 2002 GMC Savana 1500 5.7L Engine VIN: 1GDFG15R22 This van came back with a mild misfire on cyl#4 at hot idle. The misfire goes away at 2000 rpm. The tech spoke to a friend who is a tech at a nearby Chevrolet dealer for many years and the Chevy tech told him it's very likely a valve problem. The Chevy tech sa... |
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| 2003 GMC Sierra 1500 SLE 4.3L gages, starter, fuel pump VIN: 1GTEC14X53 Vehicle was recently sold from local used car lot. Ran fine. Died on customer a few days after purchase. Vehicle is no crank no start. The instrument cluster will come on and all interior functions work with key on. Key will not energize starter relay. You can... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2005 Buick LeSabre Limited 3.8L Misfire, MIL Lamp on VIN: 1G4HR54K05 This car has not yet been fixed, can not do a crank sensor relearn will not allow it. when driving can't even tell it is missing until the light starts to flash is the only indication the customer needed to use the car for a few days when it comes back in I wi... Trouble codes: P0300 (Engine missfire). |
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| 2006 Buick Lucerne CXL 3.8L ingition switch VIN: 1G4HD57206 well just took a shot at bcm really couldn't tell u while it was not telling the pcm to trigger a start but it was on the communication line .. happy to be fixed thank you |
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| 2007 Saturn Vue Green Line 2.4L MIL Lamp on VIN: 5GZCZ33Z87 Well I cant call it fixed. I just could'nt replicate the problem good enough to nail it down to one thing. the one thing I did find was a TSB indicating that the trans lines get restricted enough to cause the torque converter to stay on just long enough to pre... Trouble codes: P1A6F, U1886, U0111, U0073, P0700, P0556 (Brake Booster performance). |
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