Tag Archives: Check Engine Light
Buick Stalls – Changed IAC and MAF Sensors
1998 3800 stalls when you let up on the accelerator. I changed the IAC valve, still does it.Do I need to drive it for a while for the computer to reset.If not, maybe the MAF??? ProTech: Is the check engine light on? Check engine light has come on a few times in the past week , but then goes back off. It has NOT come…
2004 Chevy Impala Engine Misfire Code P0302
I was getting a P0302 indicator code for # 2 spark plug. I changed the wire and it went out,however when I got up to 35 mph the check engine light would flash until I got below 35 mph. I decided to change the other wires and that’s when it started to backfire and wouldn’t allow me to accelerate pass 10mph.Did I put the wires…
1995 Pontiac Bonneville Won’t Idle
I have a 1995 Pontiac Bonneville that has a 3.8L (3800)v6 engine, It starts rough and wont idle it also wont accelerate or climb hills. I have changed all 3 ignition coils and cleaned the fuel injectors what should I do next I really need this car to work. Ok, is the check engine light on or anything like that? Yes the check engine light…
2001 Pontiac Grand Prix Service Engine Light P1404
The service engine soon light came on and when the diagnostic code registered a P1404 number. What is that? I had the converter changed several months ago because it was plugged. ProTech: What year and model vehicle do you have? 2001 Pontiac Gran Prix GT with 3.8L V-6. The EGR valve? Ok, that code is for the EGR valve, which directs exhaust gases back into…
2005 Chevy Trialblazer Transmission Not in Gear
I have just replaced the engine in my 2005 Trailblazer. I can move the shifter lever but it will not go into gear. It cranks and idles fine. Engine will rev with the shifter in any position. You probably left the shift cable off, it may have come disconnected from the transmission. It’s there and installed. Or you left the torque converter bolts off, and…
2000 Saturn Has Engine Noise and No Oil In It
My 2000 Saturn SL2 is making noises when I accelerate. I took it in today to get an oil change and it was bone dry. What can I do to prevent loss of the car? I am afraid there is engine damage. ProTech: Well, if it went long enough without oil, you could have done permanent engine damage. After the oil change, was the noise…
2004 Toyota Tundra Loosing Battery Power and Gauges
Yes, hi I was driving and radio went off, dashboard dimmed, gauges all fell, speedometer when up and down then stopped at 0, lights dimmed, truck kept almost stopping. turned off lights and windshield wipers, then truck surged on, then after 1 mile or so it finally quit. turned it back on and lights on but engine will not turn, like battery is weak or starter…
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…
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.…
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…
2005 GMC Envoy Check Engine Light Code P0410
Hi , i have a 2005 GMC Envoy with the code P0410 Straight six Cylinder with a check engine light. Mechanic_JK First be sure to check all the fuses. If OK, a common problem is a valve on the passenger side of the engine. If fuse is blow for A.I.R.pump, have had the pump fill with water. there is a service bulletin to replace an…
Buick Lesabre Stalls Out And Check Engine Light
1995 Buick Lesabre-check engine light would come on; car would die in traffic; and car would buck or lung while in drive. a complete tune up of replacement wires and plugs were done.Crank sensor and computer was changed 2 weeks ago. This past weekend the car returned to same problems and computer was burned up. Had to be replaced today. i feel it laboring while…
Chevrolet Traverse And GMC Timing Chains Replacement
A big thing we’ve seen a lot of over the past year or so, has been timing chain problems on the Chevy Traverse, Saturn Outlook, GMC Acadia, and Buick Enclave. All of these SUV’s have the 3.6 liter V6 engine with dual overhead cams. What is happening on these vehicles is that the timing chains are stretching which leads to correlation errors with the cam…
Spark Plug Failure Causing SES Code P0300
One thing I see quite a bit these days, is vehicles coming into the shop running badly, misfiring, check engine light code P0300 and getting very poor fuel economy. Usually upon a test drive, I’ll find it stumbling on acceleration. Back at the shop, while checking for trouble codes there will most times in fact be multiple codes for misfires. This is often due to…