Q: Oil pressure switch was just changed in a 1997 Cherolet Astro Van, the pressure gauge has always read around 40, now reads 80. The

The Malfunction Warning light is located on the instrument panel, and is connected to your emissions system. When your vehicle’s emissions are not as expected, the Malfunction Warning light will illuminate. The light will also come on if the system...

It sounds like your engine may be seizing up due to low oil. I would first recommend checking the engine oil to ensure its proper level. If the oil is low this could be your problem. If the engine is...

Your issue could have countless causes, from a vacuum leak to a faulty fuel pump. If the Check Engine Light is on, the first step is to retrieve the associated diagnostic trouble codes (DTCs). These codes serve as a starting...

Your transmission (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-slipping-transmission) is slipping. I would have the transmission checked to see if the transmission fluid is low or overfilled. Why did you have to put in fluid? Did you have a leak? The transmission may be low on...

Each of these codes are for different components and since you swapped the motor with a different size motor than what the car had may be a big problem. You would need to have each code diagnosed (https://www.yourmechanic.com/services/warning-light-is-on-inspection) separately to...

Hello. If the issues appeared when using the AC and defroster, then they are likely related to that system. In most cases, the AC / Heater does not use vacuum lines as a part of it's operation, so a vacuum...

Hello. The mass airflow sensor and the idle air control both service as inputs for the computer to make critical calculations. If the leak you are referring to is a vacuum leak, then yes, all of these components can play...

For the question as to whether or not you can put the camshaft and crankshaft sensors into the wrong orifice, I don't see this being possible. The physical dimensions would be close, but the protrusion of the sensor pickup should...

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...