Q: Where are the pivot nuts on my wiper arm for a 1998 chevy lumina car

While your vehicle identification number includes a lot of information, it doesn’t provide much about the engine, other than the size that originally came with the car. The engine number tells a lot more. This information is located on the...

That particular vehicle uses an electronic sensor to operate the speedometer. If your speedometer is not working, that may be a sign that there is a problem with the speedometer sensor or wiring. A problem with the speedometer circuit or...

The vehicle may be low on refrigerant, due to a condenser, or compressor leak. If the vehicle blows ice cold one minute, then warm until the vehicle or AC is shut off, then you may have a malfunctioning expansion valve....

Hello. If the heater does not work I always check the coolant level first. If the coolant level for the engine is low then not much coolant will enter the heater core which results in little to no heat. If...

Hi there, thanks for writing in. The valve stem seals are the most common cause of this on your engine. When they fail, it requires that the cylinder heads be removed and rebuilt to fix it. The piston rings can...

Hello - no, a broken sway bar won't cause a tilt to either side just sitting there - only while turning. Your problem sounds like one of the driver-side springs, probably the front, has weakened (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-suspension-springs). This causes the tilt...

Hello - the MAP sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-manifold-absolute-pressure-sensor-map-sensor) is located on the intake manifold, near the back. It has a flat, 3-wire electrical connector. For assistance, I recommend a MAP sensor replacement service (https://www.yourmechanic.com/services/manifold-absolute-pressure-sensor-map-sensor-replacement) by a mobile, professional mechanic, such as one...

Hi there - as you suspect, a failed alternator, or serpentine belt (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-serpentine-drive-belt) (which drives the alternator) or its tensioner, could have failed and caused the behavior you are now seeing. Even a loose belt due to a weak tensioner...

Most cars are pretty trouble free for about 100K. After that, things start to happen. Aside from the regular maintenance, you will see the occasional check engine light and find out you need to replace things like Oxygen sensors, or...