Popular questions

There is two camshaft sensors on this engine mounted in the front of the engine inline with each camshaft.

Hello there, thank you for asking about your 1993 Pontiac Grand Prix. The pump is self priming. If the red Oil Pressure Warning Light is not on, there is sufficient oil pressure. When engines are assembled, the oiling system is...

Remove the belt and check for noise. If the noise is gone, rotate the components that are associated with the belt. Check for smooth operation and noise. Noise that persists with the belt off could originate from inside the engine....

If the check engine light is not flashing it is OK to drive the car with the particular code you have noted during the limited interval you are describing. A flashing check engine light would signify constant misfiring and you...

You already listed many causes of the problem with broken bolts and vacuum lines and fuel pressure vacuum line causing vacuum leaks and high fuel pressure at lower engine speeds. I suggest repairing all the problems you have listed when...

This sounds like there is no power to the data bus network. This means that the OBD2 plug on your vehicle is not being powered by the battery. I would enlist the help of a qualified technician to find a wiring...

Radiator and heater hoses are the most commonly overlooked maintenance items on a vehicle. Since most deterioration starts from the inside, it is very easy for amateur and professional people to not see an upcoming failure. Automotive hoses are...

Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

Hello, thank you for writing in. Having the two front tires is typically priority for a couple of reasons. One being the front tires support the engine and transmission, meaning they hold a majority of the weight. The vehicle is...

You're correct, your engine uses a timing chain. It also has variable valve timing (VTT). This system allows the engine timing to change in relation to engine RPM. A VVT fault could cause driveabilty issues both at idle and at...

Based on the symptoms you described it seems as if your fan clutch or water pump may be having an issue. I would recommend having your cooling system pressure tested by a qualified professional to determine the exact source of...

Hello. This is a common problem on this vehicle. In some cases it is caused by one of the intake hoses coming loose but most of the time it is caused by a failure in the turbo bypass actuator. These...

If your steering wheel is difficult to turn and causing your vehicle to go in a different direction than intended, you may have an issue with your rack and pinion. The rack and pinion is what is acted upon by the...

The first thing to check would be the engine oil level. The red oil can light is a warning light for low oil pressure and this can happen if there is an internal failure or if the oil level is...

You may need to replace the entire steering column, or just the key cylinder; only a visual inspection can verify the extent of the damage, and what parts would be needed for repair. I would recommend having a certified technician,...

Hello there, a few different parts can cause the vehicle to stall out and die like you have described. The most likely are the fuel pumps, an intermittent wiring issue, a bad battery cable, a faulty EGR, vacuum leak or...

This might not be good news. The timing belt is designed to keep everything turning in perfect synchronization. If the shafts are rotated independently it's possible for the pistons and valves to come in contact and the valves can be...

It sounds like the code may not have been properly cleared or potentially, there may be some wiring issues with the wires running to the throttle position sensor. I would suggest having a professional from YourMechanic come to your location...

You should have the computer scanned for misfire codes to see if one or more cylinders are misfiring and may have a bad coil or plug wire boot. Also check for vacuum leaks in the intake gaskets since any of...