20 Most Recent 1986 Pontiac Parisienne Questions & Answers

Not sure about this old a car, but probably the mode valve actuator on the HVAC box under the dash. Actuators like this send a signal back to the HVAC controls to indicate the position of the valve. If the feedback signal is faulty, the actuator will move to a default position (which is probably defrost).

Good morning Wayne You seem to have been thorough. The one thing you didn't mention was fuses. Most all lights in a car are on a fuse circuit. They often are separated specifically so that, say, a burned out or short circuited back-up light doesn't take out the brake light as well. I didn't see an owners manual easily available on line, but I'd guess that if you hunt down your fuse panel, you may find a blown fuse that covers one or both of the tail lights. Good Luck!

it can be ignition timing off a little, it could be lack of fuel under acceleration, worn timing chain, EGR valve opening too soon causing a lean condition.

do not drive it. have the fault checked immediately. check whether there is oil in your engine. Something may have gone wrong yesterday!!! Driving without soring the problem out could cost you very dear, engines are not supposed to make rattling sounds at all when being driven!!!!!!!!!!!

Turn wipers to off then turn the car off. We have the same problem in our 1986 Pontiac parisienne brougham

It depends on which distributor you have. If you have one with a vacuum line going to it, simply remove the line from the distributor and plug it off so it won't leak. start the engine and time it the conventional way with a timing light hooked to #1 cylinder wire, which is the front one on the driver's side. If you have the HEI set-up, with the coil in the top of the distrbutor, then connect a Tach to the TACH terminal on the distributor and the other lead to battery negative, UNLESS the instructions for the tach you are usung specify different. Some tachs will specify Tach term inal and battery Positive.

Usually means the sending unit in the tank is stuck or the gauge is not getting a signal from the sending unit.

This is messy, you have to access the wires to the sender. The sender is in the gas tank. You usually have to drop the fuel tank. then you can test the sender and the gauge to tell which one has the problem.

Excessive cranking will put too much fuel into the engine. Have you tried holding the gas to floor and see if it starts. That will help clear out excess fuel from continued cranking. Check for spark at a sparkplug wire. This will tell you if ignition system is working. You need to see a blue snapping spark to know ignition is good. If you are not sure how to check for spark, have someone help you. Easy to get a shock when checking for spark. You need the metal end of the plug wire just 1/8 inch to 1/4 inch away from a metal bracket or bolt on the engine. Hold it steady while someone cranks the engine over-watch for a strong blue spark to jump from metal end of wire to the engine. If no spark, your ignition system needs checked. If spark is good, have the fuel pressure checked-maybe it is getting too much gas.

Loosen the top bolt you see on the alternator slotted bracket& the thru bolt on the bottom holding it to the mounting bracket