|Prev||Professional Automotive Repair Technical Discussions for March 17, 2013
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Open Help Requests for GM
|1989 Cadillac Eldorado 4.5L Excessive Emissions VIN: 1G6EL1156K
This car is failing the ca emission test for high NOX, the vehicle has 280K miles on, checked the fuel pressure and its under specs, o2 sensor failed the rise test so I replaced that, Cleaned the EGR passages and also tried another egr valve, customer had alre... Trouble codes: 46 (lean mixture)
|2000 Chevrolet Monte Carlo LS 3.4L engine VIN: 2G1WW12E7Y
I have this car that has me stump, the check engine light came on code P0301 came up cylinder 1 misfire. I change the spark plugs,wires,cam sensor,crank sensor,map sensor and the harmonic balancer also I change the air filter. Turned the light off, drove the c...
|2003 Hummer H2 6.0L instrument cluster VIN: 6GRGN23U73
2003 hummer H2 instrument inop-speedometer stuck to passed 120.oil gauge inop.every thing was fine with this vehicle after replacing steering gear box.customer drove vehicle for 2 days and came back with instrument and speedometer partially inop-dealer wants 2...
Fixes & Summaries for GM
|2001 Chevrolet Cavalier 2.4L timing chain VIN: 3G1JF12T11
At this time the vehicle is not repaired. However I am now convinced I have been looking in the wrong place. The water pump was replaced as part of this job. The noise has not changed with a new GM tensioner and the oil passages are not plugged. When I replace...
|2004 Chevrolet Astro 4.3L Poor Idle Quality VIN: 1GNDM19X84
This van is a commercial rig and the owner is unable to leave it for any significant time. The problem is intermittent. I only experienced it one time and did not capture any useful data. The TPS seemed like the most likely cause but never read out of specs...