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Prev Professional Automotive Repair Technical Discussions for August 9, 2010
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Open Help Requests for GM
Help Request Answers
1993 Cadillac DeVille 4.9L compressor VIN: 1G6CD53B4P
Ive replaced the fuel data display because i wasnt getting any info from the display unit on climate control or fuel. replaced compressor drier orfice and low pressure switch and now ive got code F48.Checked circuit 257 from bcm and i have nothing
2000 Cadillac Eldorado ETC 4.6L b2471 VIN: 1C6ET1296Y
I have check relay(all realys) and fuses, and any sign of shorting to ground circuits. Your help would be greatly abe appreciated. Tae
1986 Chevrolet C10 Silverado 5.0L Fuel Gauge Erratic VIN: 1GCEC14F1G
Hello everyone and thanks for the input on this truck. This truck has a functional gas gauge, but the needle is very erratic and wags back and forth at least a quarter and sometimes higher as the fuel sloshes when it is below full. I realize newer gauges have...
1998 Chevrolet Cavalier 2.2L hydraulic system VIN: 1G1JC5243W
Customers brother replaced the left rear brake line from the hose to the cylinder. He couldnt get any fluid to bleed it out. brought the car to me and I couldnt get any fluid either. The right rear flows good but it is on a different section of the ABS unit. W...
2000 Chevrolet Tracker 2.0L Poor Idle Quality VIN: 2CNBE18C84
Little truck runs good other than at idle under load buzzes real bad.Idle is rough
2001 Chevrolet Silverado 1500 5.3L change out VIN: 1GCEK14T21
thanks to all that and can give guidance. this is my stepdaughters boyfriend he wants to take out the the np248 electronis shift and put in a 241 manualshift transfer caes.i said i would remove and replace it when he said he wanted a slip yoke eliminater on or...
2003 Chevrolet Silverado 1500 5.3L 2-3,3-2,4th? VIN: 2GCEK19TX3
4l60e came in with rear planet hub separated from broken ring gear,overhauled with new electronics,convertor,beast,and other essentials and gave back to customer to install.he calls saying slipping in 3rd,so we pick up and indeed usually not on first upshift b...
2003 Chevrolet Avalanche 1500 5.3L transfer case VIN: 3GNEK13T43
Hello everyone. A 2003 Avalanche came in with service 4x4 light on. We scanned codes C0359 lo output circuit volts high and C0379 front axle circuit malfunction. We replaced transfer case shift control module and found a wire broken [power to shift control mod...
2003 Chevrolet Suburban 1500 LT 5.3L compressor VIN: 3GNFK16Z03
I put a new ac compressor on this vehicle today. I bypassed the system to get a charge in the unit. the ac works fine with a jumper wire but it wont work on its own. Is there a charging routine to do it so everythign works well, I put the exact charge it calls...
2005 Chevrolet Colorado Z71 3.5L brakes and/or 4wd VIN: 1GCDT136X5
Truck came in from dealer due to needing the front hub bearings needing replaced due to abs codes and driving issues. We replaced the sensors now has been out of shop for about 4 weeks.. customer called and asked if we did repairs properly stated that they wer...
2005 Chevrolet Cavalier 2.2L Clutch VIN: 1HC5498787
This cavalier was towed in with the clutch pedal on the floor. Fluid level was full. After several pumps the clutch came back and felt good, let it sit for just a few minutes and the good pedal is gone. Customer has never added any fluid and i cannot find a le...
2008 GMC Acadia SLE 3.6L Outlet Temperature VIN: 1GKER13788
This is one that's making me wonder what's going on. It's the service drive managers wife's truck so i have to get it right. This is what it is doing, at times with the ac set at max and the air inlet door closed the outlet temp will be in 70's. It has no code...
2000 Pontiac Bonneville SSEi 3.8L electric windows and locks VIN: 1G2HZ5412Y
have a problem with the passenger windows and door locks not operating. they do not work with the driver door switch or with their own window switches. the driver door window and door lock operates normally. i have tried a driver door module and driver switch ...
2003 Saturn L300 3.0L MIL Lamp on VIN: 1G8JW54RX3
hey this saturn is a wierd one on holidays customer had p0102 maf sensor code the shop put one in no problem continued on there way half way home no pwr and light on again p0102 so i tested have 12v orange wire, purple/wht has grnd,gray has 5v check yellow wir... Trouble codes: P0102

Fixes & Summaries for GM
Fix/Summary Answers
2000 Cadillac Catera 3.0L dead battery VIN: W06VR54R3Y
thanks to those who responded,after pulling fuses the common soruce was the multifunction relay it was replace and problem resolved
1987 Chevrolet El Camino 5.0L No Start, Misfire, no spark VIN: 3GCCW80H4H
sorry for delay . my boss wanted to fire a tech , this guy crossed the coil primary wires + - to -+ . i guess you can figure out how EASY that would be for me to catch and fix . thanks for all your support.
1999 Chevrolet K1500 Suburban 5.7L No Start, MIL Lamp on VIN: 3GNFK16R1X
Thanks to all who replied. This suburban is fixed. Haven't seen it in three weeks. The problem ended up being the passlock mobule. Had a couple of postings that said to check under the power dist center for bad connections or chewed wire harness. Also have alo... Trouble codes: 1626 (Fuel enable).
2000 Chevrolet Malibu LS 3.1L Lack of power, warm VIN: 1G1NE52J2Y
This vehicle drives correctly IF the knock sensor is left disconnected. The monitor never shows a knock retard signal, but the timing advance does back down when the loss of power is hapening. We will likely work on this car again this week, We have not give...
2000 Chevrolet Monte Carlo LS 3.4L Accessories VIN: 2G1WW12E4Y
It was the instrument cluster causing the problem, Thanks to all who helped in this matter
2001 Chevrolet Silverado 1500 5.3L No Start VIN: SDEFKSDLN1
well thanks for all the replies,we'll have to see how long it lasts,we did run a ground to the frame
2004 Chevrolet Avalanche 1500 Z66 5.3L OBD II monitor VIN: 3GNEC12T44
Thanks for all the inputs on the Avalanche. We cleaned all of the grounds,it had a new battery in it, and then determined the PCM was the cause of this issue. We called the dealer because this fell under the 8yr 80,000 mile warranty. They installed a new PCM a...
2004 Chevrolet Express 2500 LS 6.0L Belt Tensioner VIN: 1GCGG25U84
Overwhelming response saying bad compressor. Hard to believe when compressor does not make noise and cools so well. I did find the TSB. I had looked for one before I posted, but missed it. Customer has not decided what he is going to do. Thanks to all who repl...
2005 Chevrolet Silverado 1500 5.3L brake lights VIN: 2GCEC13T95
Well, Thanks to you guys and in particular John and Rodger I found I was checking the wrong conector. [...],f4,lt blue was working just fine. We found a break in the wire with corosion a couple of feet from the rear junction box. I was reading the scematic...
1998 GMC Savana 3500 6.5L No Start VIN: 1GDHG31F1W
Well... We still waiting for the customer to make a dacision so, whenever he decides I'll let you all know what we'll do either repair it or get it out of here.
2006 GMC Sierra 1500 SL 5.3L a/c VIN: 1GTEK19B86
The vehicle is fixed we started by checking some of the easier suggestion. The fan was pulling good air threw the condesor, so we went ahead and did another evac. Replaced the orific tube and gave vehicle a fresh charge. So far so good the vehicle has been ...
2000 Saturn SL 1.9L reverse and drive VIN: 1G8ZH5285Y
Sorry for the delay. I told customer that by the time we replace the valve body and/or input shaft how much $$ it will cost, so she've decided to replce the transmission.
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