Tag Archives: Problem
2005 Chevy Trailblazer Runs Rough at Idle With No Compression
#1 cylinder in my 2005 Trailblazer has no compression. I applied air pressure and it sounded like the exhaust for no air came out f the throttle body. There was air coming out of my # 5 cylinder with the #1 at TDC. wanted your opinion on if you think it is an exhaust valve not seating? ProTech Yes, I would think that is your…
Which Catalytic Converter is Bad on My Ford F-150
2004 Ford F-150 Lariat 4×4 exhaust pipe exiting resonator on driver side warm. exhaust pipe on passenger side exiting resonator hot which catalytic converter is bad? and can you clean out the carbon? ProTech: How much of a heat difference is there? There is a significant amount of difference. drove truck for about 30 min. and was able to hold hand on exhaust pipe driver…
2003 Buick Century ABS and Low Trac Lights On Dash
I have a 2003 Buick Century and there are several warning lights that come on at different times when I am driving. the low track light, the abs light, and etc. These lights are all yellow-orange in color not red. I have checked the car several times myself and have had it checked by mechanics also. When we put a diagnostic computer on it there…
1999 Silverado Security Light and Won’t Start
I have a Chevy Silverado 1999 turns over but no fuel and no spark changed fuel pump cam sensor Crankshaft sensor still nothing some one told me I need to have my key reprogrammed. ProTech: Is the security light on? Yes. Then that is your issue. The theft deterrent system will kill the fuel enable signal so the truck won’t start. Your Silverado does not…
Reduced Engine Power Warning And Check Engine Light
The reduced engine power warning message can come on your car or truck. Today’s vehicles are for the most part completely electronically controlled. From every button and switch on the dash down to the ‘fly-by-wire’ throttle control system. Back in the day, before these electronically controlled throttles, everything was cable actuated. You press the gas pedal, and a cable opens the carburetor or throttle body.…
How To Replace Buick Park Avenue Belts
I have a 1996 Buick Park Avenue Ultra that needs both serpentine and super charger belts replaced my questions is, it appears that i have to remove the motor mount or bracket in order to do this, Ive never seen this before or am i just not seeing it clear. thanks for your help, Paul Protech: Yes, that is correct. You have to remove the…
2006 Pontiac Grand Prix Seconday Air Injection Code
My 2006 Pontiac Grand Prix’s check engine light came on and the mechanic replaced the air pump. The light came back on and now they are replacing a secondary valve tomorrow and they can’t guarantee that’s the problem. I’m already at $600 worth of repairs and it probably won’t take care of it. I have researched this on the Internet and it seems there is…
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…
How To Reset Pontiac Grand Am Security Light
I have a 2004 Pontiac grand am and my security light stays on how can i turn it off it does not have a reset button. ProTech: You cannot just turn it off unless the problem is fixed. The security light is on because you have a problem with your Passlock theft system. There are temporary fixes, like doing a re-learn of the theft deterrent,…
Jaguar XJ6 Six Cylinder Won’t Start
I have a Jaguar xj6 that won’t start. It is a 6 cylinder with fuel injection. I think that it has a problem with the module. The same module is used in a 78 Chevrolet. What is the function of the module? Protech: Not familiar with Jaquar. What module are you referring to? It is an ignition module. It is about 1-1/2 inches long and…