Question about 1999 Pontiac Montana

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Does head gasket treatment work for 1999 Pontiac Montana?

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Depends on how bad the head gaskets are. I've used it on numerous vehicles motors, and if the problem was minor, it worked. If the problem is a little more than minor, it would be a wast of money trying to treat it, you would be better off replacing the gaskets.

Posted on Oct 27, 2012

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Posted on Jan 02, 2017

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SOURCE: low beam headlights not working on 2004 Pontiac Montana extended

You headlight lamp have a diffuser mechanism which allows it to flip between the hight beam and low beam feature of the bulb. In fact, you high beam will function even if the low beam is not working.

I would recommend the purchase of the new headlight lamp. It would cost you you any where from $15.00 per unit to get a replacement lamp

Posted on Jan 06, 2009

  • 98 Answers

SOURCE: My 1999 pontiac montana rear sliding power door will not work

I went to bulldogsecurity.com and looked up the wiring diagram for this vehcle. However, prior to checking this part, I would check to see if you have a blown fuse. It doesn't hurt and only takes a few minutes. There should be a fuse for that either somewhere on the side of the dash or near the brake pedal area. If not it may be under the hood, but it should be inside the vehicle. You may have multiple fuse boxes. If it has (2) sliding doors it will have a wire for the auto doors in each kick panel (under the plastic trim/molding) when you open the door and look down you will see all of the trim/molding it should snap out or may be held in place with a screw or (2). Once you remove that you should see the wires. It says for the left side it is either light blue or black and the right side is definitely light blue. Trace this wire until you find out where it ends (the motor or switch to control the auto doors) Then test the switch/motor to see if it is bad.

Posted on Mar 02, 2009

  • 22 Answers

SOURCE: Radio/cd player not working in 1999 pontiac montana

did you pull the radio out? it might just be a loose wire or something simple.. the car is 10 years old stuff becomes loose

Posted on Mar 27, 2009

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SOURCE: Help me with a motor interchange

to change from the grand am to fit montana u have to change upper an lower intake wiring harness for fuel inj differant and front timmig cover all said an doneiwould keep to a 2001 if possable 1999 an 2001 are odd yrs

Posted on Mar 31, 2009

dttech
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SOURCE: The Driver Information Center (DIC) 99 Montana is out

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.

Posted on Oct 11, 2009

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1 Answer

My 99 Pontiac Montana Keeps running Hot.I replace the thermostat , Coolant Sensor..Is It possible that the water pump Is Bad?


The radiator may be plugged or the head gasket can let compression gasses into the radiator . To check, run the engine without the radiator cap and look in to see if there any bubbles in the coolant. If there is a lot of coolant moving in the radiator after the T/stat has opened, the water pump is ok. If not then suspect the water pump is not circulating enough water.

Nov 09, 2016 | 1999 Pontiac Montana

4 Answers

99 pontiac montana overheaten already changed thermostat what is it?


you have a GM common problem and that is a bad intake manifold gasket. GM change the gaskets to plastic and they crank and leak causing over heating. here is a picture of one i took from a 2005 pon. bonneville with 74,000 miles on it2_12_2013_3_00_09_am.jpg

Feb 12, 2013 | 1999 Pontiac Montana

1 Answer

How to replace 2000 montana head gaskets


The top part of the engine has to come off. That will get you to the heads. The gaskets are under the large heads the spark plugs go into.

Dec 14, 2010 | 2000 Pontiac Montana

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I did a head gasket on a 99 pontiac montana 3.4L. I did not mark my valves when i pulled them out and already put the heads and lower intake on and do not want to pull them all off to figure out which...


are you talking about the push rods, if so the short ones are for the intake valves and the long ones are for the exhaust valves their are only 2 different lengths

Jun 11, 2010 | 1999 Pontiac Montana

1 Answer

Need repair manual for 1999 Pontiac Montana


I would recommend the MITCHELL'S Online Manuals. Go to www.mitchell.1.com and you can get a single subscription for about $10. When I had my own repiar shop I had te complete set of Mitchell's. Very complete and just a good as the factory repair manuals (maybe better). I especially liked the wiring diagrams. Very complete.
Good Luck. . . . . BTW, you SHOULD replace the head bolts regardless of which type of gasket you use. Once they are torqued, they shouldn't be used again.

Jan 20, 2010 | 1999 Pontiac Montana

1 Answer

The heater in my 2004 Pontiac Montana isn't putting out adequate heat. The blower is working fine.


THE 97-04 MONTANA HAS THE 3.4 ENGINE WHICH HAS AN ISSUE WITH FAULTY INTAKE MANIFOLD & HEAD GASKETS WHICH FAIL TO SUSTAIN CIRCULATION IN THE COOLING SYSTEM AND CAUSE AN INAEQUATE HEATING SITUATION. REPLACE WITH FELPRO GASKETS AND YOUR PROBLEMS ARE OVER, PROVIDING ENGINE IS NOT DAMAGED!

Dec 09, 2009 | 2004 Pontiac Montana

1 Answer

Have you heard of any specific problems with the


aye lower intake gasket 50-60,000 mi
but i like the 3400 its a strong engine.

Oct 22, 2009 | 1999 Pontiac Montana

2 Answers

No rear air or heat in 1999 pontiac montana


If ac works & switches I'd check coolant level low coolant or air pocket will cause this for long run. if low ck water pump, intake or head gaskets known problem on 3.4 engine

Aug 29, 2009 | 1999 Pontiac Montana

1 Answer

1999 pontiac montana 3.4 heat ing problums


sounds like a blown head gasket to me.  Does the coolant smell like exhaust?

Mar 31, 2009 | 2001 Pontiac Montana

1 Answer

Temperature gauge shows hot


head gasket does the overflow bootle have bubbles in it when idleing warm if does most likey rear head gasket.

Jan 04, 2009 | 1999 Pontiac Montana

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