Tag Archives: Valve

Enigne valve and warning light problems answered by expert mechanics. From mehanical to emissions related problems.

Mitsubishi Gallant Codes Po765 po760

Mitsubishi Gallant Anti-lock light was on the dash then a couple days later I was on the freeway doing 65 miles per hour my car dropped down to 40 miles per hour and the RPM’s went up high but my car would not accelerate. When I pulled over to put it in park I tried…

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After Replacing Oxygen Sensors And Throttle- Truck Has High Idle

I have a 2000 Ford F-150 4.2 ltr v6 2wd. It was throwing codes p0171 and p0174. I changed the upstream o2 sensors and the MAF. Took it back to Autozone to check the codes one more time and they said it was an IAC valve (idle air control) code so I replaced that. After…

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Buick Engine Idling Very High After Jump Start

I have a 1995 Buick Century special (sedan). the newer v6, 3.1. I just replaced the whole wiring engine harness due to a small electrical fire from some stupid people that tried to jump another car in the dark and the red positive jumper wire touched the air cleaner cover and started a fire and…

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2001 Pontiac Grand Prix Check Engine Light

I recently replaced my EGR valve because the check engine light code came up on my car, along with that I also had to replace my catalytic convertor, from what the mechanic I went to said, is that the bad EGR valve caused the catalytic converter to clog, I don’t know how true this is because…

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Location Of 2000 Buick Century Emission Control Valve

I cant find the  emission control, the picture is too blurry to see it. Can you help? I have a 2000 Buick century 2000. And p0440 and p0442 says i have a leak also. ProTech What emission control component are you looking for? There are many on each vehicle.The codes you have are both for…

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2002 Pontiac Montana Cuts Off At Higher RPM’s

2002 Pontiac Montana 3.4L OHV had oxygen sensor code but replaced it and cleared. Head gaskets were leaking as well so replaced (milled heads, pressure tested, valve job, replaced 4 bent intake valves), also replaced plugs, wires, coils and ignition module and O2 sensor, cleaned throttle body. Car cuts out at a specific RPM in…

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Saturn Ion Timing Chain- Car Won’t Start

I replaced the timing chain on my 2005 Saturn Ion why is it still turning over really fast? ProTech: Are you sure the timing was set correctly? Yes, but It’s like it don’t have compression. Can I ask why you replaced the timing chain? Was it for that problem? The crankshaft gear broke so I…

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1997 GMC Sierra Engine Light And Idle Surge

MY 1997 GMC SIERRA W/350 V8 HAS A DEAD CYLINDER ON #4. SPARK PLUG IS GOOD, WIRE IS GOOD DISTRIBUTOR CAP IS GOOD. WHAT ELSE COULD BE CAUSING THIS DEAD CYLINDER ? TRUCK HAS 117,000 WELL CARED FOR MILES ! ProTech: Have you tried a compression test? Not yet, but a compression test was next…

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3.8L Buick Burns Oil Between Changes

I have a 2004 Buick 3.8 motor I’m burning a quart and half of oil between changes. I’m not leaking any oil on ground thanks kraig. ProTech: You might want to check the PCV system. If the valve is bad, or one of the o-rings is cut, improperly installed, or missing, the engine will start…

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1998 Dodge Ram Burning Oil

I have a 1998 Dodge Ram Sport 1500 4×4 only 141000KM, it’s burning to much oi. I went 275km and had to add 2litres. Can anyone tell me what the problem might be? That is quite a bit of oil that the engine is burning! You could have a severe internal engine problem like a…

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Check Engine Light Code P0300 On GM 2.2L and 2.4L

We have been seeing quite a few problems with the GM 2.2L and 2.4L engines. Mostly on model years 2005 through 2009. This engine is very common in the Chevrolet Malibu, Cobalt and HHR. As well as the Pontiac G5 and G6. This is the 4 cylinder.  The problem I am going to talk about…

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2001 Toytota Has Several Warning Lights and Burns Oil

I have a 2001 Toyota 4-Runner 2001. The TRAC OFF, Check Oil, and VSC TRAC light came on. Is it safe to drive until I can get it to a mechanic? The main thing I would worry about is the ‘check oil’ light. Make sure it’s full before you drive the vehicle, or you can…

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