Category Archives: Chevrolet
2003 Chevy Venture 5 Volt Reference Codes
I am getting code P1639 on my Chevy Venture van 2003. This is supposed to indicate a low 5 volt reference at the AC pressure sensor and the fuel tank pressure sensor. I have measured the voltage going to both sensors and get 5 volts. This is a gray wire in both cases. The AC has been working fine and I have no other codes.…
Theft Relearn Procedure For 2008 Chevy Malibu
My security lock light is on and don’t know why or what to do! but my car will not start! Please help! Protech: What year and model car do you have? 2008 Chevy Malibu. You can try a theft re-learn procedure, but it may only be a temporary fix. More than likely you have a problem with the ignition cylinder and/or key, with the security…
Knock In 2002 Chevy Malibu Engine
Why would a 2002 Chevrolet Malibu with a 3100 knock through the intake only when opening the throttle body. Protech: Hello, is the sound like an engine knock or valve train noise? .Or more like a backfire. Like metal hitting the inside of intake but only when giving it gas. its not a ping or backfire. OK, that is a valve train issue. You could…
1998 Chevrolet Silverado Stalls When Hitting Brakes
When i apply the brake it kills the motor on my 1998 Chevy Silverado 5.7 liter .i just changed the gas tank,fuel pump, and,fuel filter. Truck runs great until you apply brake. Mechanic JK: Does your truck die out as soon as you touch the brake pedal, or does it die out as you coming to a stop and sitting at idle? Only when you…
Chevrolet Equinox Brakes Vibrate And Warning Lights
Live Chat: I’m having the same problem as far as the ABS and Traction control light coming on. I have a 2005 Chevy Equinox and when ever I start the truck and go to pull off the brakes starts to vibrate and is hard to stop until the ABS and Traction control light comes on and then your able to brake with no problem but…
1999 Chevy Malibu Low Coolant Light Flickering
I had just put in a brand new radiator on my 1999 Malibu, and the coolant low light will not turn off, the coolant should be full up, but the light doesn’t turn off and the car stays at a even temperature just a hair above the mid point. Mechanic JK: OK. I think i know what the problem is. First, are you sure the…
2000 Chevy Impala Transmission Problems
2000 Chevy impala 143,000 miles. I had a new transmission put in 13 months ago. Lately I noticed the slipping again and swooshing noises like liquid moving. Happens more when engine is hot (after 25-50 miles of driving) For two weeks now the engine light has been going off and on. Today I took it to a dealer and they put the computer on to…
2004 Chevrolet Suburban Service Stability Light
Wondering if you knew what the code co455 for a 2004 Suburban. Protech: That code is for the steering wheel position sensor. Usually those need replacement when this code occurs, as the module cannot exactly see what position the steering wheel is in at a certain time while driving. All that is tied together with the steering wheel ? Yes, that code is part of…
2004 Chevy Impala 3.4L Spark Plug Wire Routing
I have a 2004 Chevy impala that i cant get my wires set right on.i really need some help with my spark plug wires.i removed them and i cant put them back on right…can you help me??? Mechanic What year, make and engine size? 2004 Chevy impala 3400 3.4. The rear plug wires are the odd numbered. The front are the even number. I need to…
2005 Chevy Equinox Blower Motor Speed Problems
2005 Chevrolet Equinox, starts up but when I put it in gear, it is in overdrive. Turn it off then restart it, it works fine for a while, then does the same thing again at a stop sign or light. Mechanic JK: what makes you think it is in overdrive? That’s what it seems. Hit the gas and it is like a slipping clutch(auto) until…
Fuel Leak Recall On Chevrolet Cobalt And Saturn Ion
Lately at the dealership we have seen another rash of problems on the Chevorlet Cobalt and Saturn Ion vehicles. These are basically the same car, just different nameplates. What the customers are complaining about is a fuel leak at the fuel tank area, or a strong smell of gasoline coming from under the car. The problem they are experiencing is a common issue on some…