20 Most Recent 1998 Buick Regal - Page 6 Questions & Answers

could be a bad clutch in the ac pump,try sprayin some wd-40 on the clutch with the ac turned on, this would only be a temp fix if the thump goes away, but will let u know if its the ac clutch

could be a vacum leak

Replace with a new or used one.

if you don't know the code . Go to GM dealer for factory code. then you can put your own code after there is no other way (it's for thiefs)

check the relay

the fuse for the fogs is in the fusebox in the passanger side door panel. the relay is located under the hood in the fuse box directly behind the battery its relay number 17 if im not mistaken hope I could help

maybe the connection is loose.Launch scan tool

if you talking about inside the car then there is only 2 reason :1-the ac hose is dripping inside the car ( mostly it is under the carpet in the passenger side ) you will be lucky if that is the problem .2-your heater core is leaking you can tell if the radiator water gose low )and for you to fix that you have to choice :A- is to replace the heater core and that is mostly not an easy job .B- is to block the radiator hose that is going to the heater core ( from engine side ) but if you go with these option you will not gana have a heater in your car

YOU NEED TO CHECK THE BATTERY IF IT HAS CAPS TAKE THEM OFF AND CHECK WATER LEVEL BUT ALL BATTERYS DON;T HAVE CAPS YOU CAN USE A VOLT METER TO CKECK OUT PUT CHCEK + TO -SHOULD BE AT LEAST 12 VOLTS THEN HAVE SOMEONE ELSE TURN KEY TRYING TO START IF THE VOLTAGE DROPS BATTERY IS NG BE CAREFUL BATTERYS CAN EXPLODE

May be coming from the stereo, Remove the stereo fuse(s) and retry the key.

You need to change hub bearing because bad sensor.

Thats because hoses don't connect directly to belts, that makes no sense to me

look on internet get some ideas.

TPS or IAC could cause problem.

Have you checked out the ignition module the coils are mounted to ?Is it getting power and a ground signal from the computer ?

have you tried checking under the hood? they could be in a plastic box on the topside of the finderwall.

most comon problem need new wiper motor

A broken starter, 99.9% of the time, is caused by an engine backfire. Whatever caused the backfire is what ruined your spark plugs. From my experience, the most common culprit would be a bad crankshaft position sensor.