Q: My ac works off and on,what can be the problem?

Your fuel pump may be failing and the engine intake may have incurred some vacuum leaks. The system would need a thorough diagnostic check. I recommend having a certified mechanic, such as one from YourMechanic, come and test your vehicle's...

If you are loosing coolant and had it tested without any leaks identified then you may have a head gasket leaking or a heater core leaking. Look at the exhaust to see if you see any white smoke indicating the...

Hello. There may be a problem with the combination switch (https://www.yourmechanic.com/services/combination-switch-assembly-replacement) or a headlight switch (https://www.yourmechanic.com/services/headlight-switch-replacement). It is also possible that there is some damage to the wiring of the dashboard, interior lights, and fog lights. I suggest that you...

Coolant leaks (https://www.yourmechanic.com/services/coolant-is-leaking-inspection) can originate from a few different places. A pressure check of the cooling system can be performed, subjecting the entire system to higher-than-normal pressures under controlled circumstances to find weak points. Leaks could be coming from hoses,...

Diagnostic Trouble Code P0745 refers to out of range voltage at a solenoid-operated valve that regulates hydraulic pressure in the transmission based on outputs from the Transmission Control Module (TCM). Code P0745 is set when the TCM sees an out...

If the engine has a blown head gasket then you may have got coolant and water into the engine cylinders and inside the crankcase. Since it sat for a long period then you may have rust that built up inside...

Hi Bo. Jaguars typically have this problem, which tends to be caused by one of two things. First, it's common for an internal transmission sensor failure to trigger this warning light and the shifting issue. A second issue is due...

There is likely an electrical malfunction that is intermittent but "heat" related. That is, once the engine warms up, the malfunction occurs. Sometimes ignition coils or crankshaft position sensors will do this but there are quite a few possibilities. In...

A faulty or blown fuse in other electronically controlled systems can cause the IAC motor to malfunction, leading to a higher than normal engine idle speed. Other possible causes of a high idle include vacuum leaks, a malfunctioning throttle (throttle...