Q: Cyl valve

There is a good chance that the gate sensor is malfunctioning. This is not an uncommon problem. I would enlist the help of a qualified technician to pinpoint the problem and confirm that the sensor is malfunctioning.

Hi. Two of the three codes you have given me have a little to do with each other. These are the p0300 and p0170 code as they are reporting issues monitoring fueling. The p0341 code indicates a failure in the...

You'd want to find out what the Walmart transmission oil specifications are. Somewhere they have to have that because it's the federal law. If it has the same specs as the Hyundai transmission fluid (https://www.yourmechanic.com/article/how-to-replace-transmission-fluid-by-robert-tomashek), then go ahead and use...

Hello. Two common component failures that will cause the conditions you've described are a faulty fuel pump relay (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pump-relay) or a crank position sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-crankshaft-position-sensor). Both parts have the potential to fail intermittently when they become hot. But when they...

Hey there, thanks for writing in about your 2001 Oldsmobile Bravada. You are losing ignition spark or fuel pressure to the ignition. The vehicle and year is known to have failures in both systems and the only way to diagnose...

Hi there. Knocking noise from the engine is not good. Assuming, it is the engine knocking. A heavy consistent knock could be a connecting rod. A hollow knock (louder cold and quieter warm) could be a piston. Metal contamination in...

With the information that you have provided, it sounds to me like the distributor may have been installed 180 degrees out of rotation. If the engine is turning over so easy that it sounds like there are no plugs in...

Hi There, Depending on how severe the damage is will determine what the cost may be to repair. Often times, the damage is unknown until the cylinder head is removed and inspected for cracks and other damage. If the damage...

This is a common symptom of a failing crankshaft position sensor and as the code indicates, this means the sensor needs to be replaced. A crankshaft position sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement) is an electronic device used to monitor the position or rotational...