Q: There is rubber stuck in serpentine pulley grooves

The coolant temperature sensor is likely what caused your Check Engine light. Sometimes aftermarket manufacturers produce parts of a lesser quality than the OEM. However, this does not mean that all aftermarket manufacturers produce faulty parts. It is harder to...

I'm not sure whether you're talking about the brake warning light on the dash or the brake lights themselves. If you're referring to the brake warning on the dash (https://www.yourmechanic.com/services/brake-warning-light-is-on-inspection), this indicates a problem with the braking system. If the...

The Volvo 850's are notorious for having main fuel relay failures (https://www.yourmechanic.com/services/main-relay-computer-fuel-system-replacement) due to burned contacts in the relay. This will cause intermittent fuel delivery issues which result in stalling, shuddering, and no-starts. This is an inexpensive part to replace,...

Hello. When you get the P0421 code (https://www.yourmechanic.com/article/p0421-obd-ii-trouble-code-warm-up-catalyst-efficiency-below-threshold-bank-1-by-andrew-quinn), it usually means that you have a failing catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement). It is very common for converters to fail on this vehicle over time. Most of the time I use a scan...

This can be caused by a number of things such as low coolant levels, a faulty thermostat (https://www.yourmechanic.com/services/thermostat-replacement), or a failing coolant fan switch. As you may know, the coolant fan switch (https://www.yourmechanic.com/services/cooling-fan-relay-replacement) helps to maintain the proper coolant temperature...

Hi there. It appears you have an engine misfire problem. In modern cars, misfiring will invariably be accompanied by a Check Engine light. In fact, checking for efficient combustion was the primary reason the U.S. government introduced the rules for...

Hello, thank you for writing in. Considering you have taken on a lot of the main components all at once, you should take a moment to go back through the entire project thus far to make sure everything was done...

You may have a defective sunroof motor or the track is binding but you should have the body computer scanned to see if the sunroof motor is being activated when switch is pushed. You may have a defective switch.

You may have a shifter cable problem with the cable ends. The plastic cable end bushing deteriorate and fall apart causing this problem and may require the shift cable to be replaced. Check cable end where it connects to transmission...