20 Most Recent 1999 Pontiac Montana - Page 3 Questions & Answers

don't know if you have had any luck yet.. the radio displays on those older gm cars do just simply fail , I have had 4 in that 96 to 99 time frame and each one just quit suddenly. I believe as crazy as it sounds that the display runs thru the radio. gm did this in all their newer cars in 2000 and up ..they use a data cable that runs thru the radio and feeds half the dash ..

1999 Pontiac... | Answered on Dec 20, 2014

likely leaky heater core. May try pellets that GM offers to seal small leaks. Contact dealer or good auto parts store. Rad pellets

1999 Pontiac... | Answered on Dec 10, 2014

timing can not be adjusted. it is computer controlled.

1999 Pontiac... | Answered on Aug 30, 2014

There are many symptoms which could cause this problem... electrical, fuel, ignition, etc... determine your error codes and start from there. If the Van has been sitting for some time I would add an octane booster and gas dryer, disconnect the fuel filter and allow ~ 1 gallon of gas to drain into a 2 gallon gas can, replace the fuel filter and see what happens. If that didn't work I would work through the ODB II codes to find the probable cause.

1999 Pontiac... | Answered on Aug 14, 2014

Should be on front of engine behind all pulleys on right side.

1999 Pontiac... | Answered on Aug 02, 2014

Hard to answer this without more information.
Does it shake only when moving down the road? Or does the shake only happen at certain engine rpms regardless of vehicle speed?

1999 Pontiac... | Answered on Jul 16, 2014

The engine serpentine belt may be worn or wet. The belt slips, causing a high pitched squealing or whistle noise. The other possiblility is a bearing beginning to go out on one of your belt driven components

1999 Pontiac... | Answered on Jul 02, 2014

have to remove arm... could be stripped inside the mechanism (called wiper transmission) ,, check to determine which it is before you buy either

1999 Pontiac... | Answered on Jul 02, 2014

what it doing or not doing please give more info please thanks

1999 Pontiac... | Answered on Jun 25, 2014

I am assuming that the DIC does not "power-up" at all.

Check your owner's manual to see which fuse powers the DIC. If the fuse is OK, you need to get your hands on a wiring diagram and remove the DIC from the dash so you can check to see if you have a good ground on the ground wire to the DIC. Then check to make sure you have battery voltage to the B+ circuit to the DIC. If the proper voltage and ground are present, you will have to take the DIC to your local dealer for repair. Many GM dealers have an exchange program where you can turn your old DIC in and get a "remanufactured" one on the spot. Others will send your DIC out for repair and call you when it is returned to them.

1999 Pontiac... | Answered on May 27, 2014

Set the parking brake and then put the shifter in neutral so you will not damage the transmission. Remove both upper engine mounts, They make a special tool for this but its a little expensive so I just use a ratchet strap. Hook one end to the engine and the other to something solid on the front of the engine compartment. Pull the strap as tight as you can and then ratchet the engine forward as much as you can. It won't give you enough room to remove the alternator, but it will help give you room to take off what you need to to get it out.

1999 Pontiac... | Answered on May 04, 2014

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