Question about 2002 Pontiac Montana

2 Answers

Pontiac montana 2002 coolant temp rising to red zone

On the highway today , light comes on for overheat , temp up to red zone. Turned AC off. I stopped and let it rest for 15 minutes until it creeped down, drove for 10 , repeating this 3 times. Only had a few miles left to get home. On one stop I decided after 10 minutes of rest, to loosen the cap so maybe it would go farther with no pressure built up.
Carefully loosened cap and even though it was not at all down to normal temp, there was no burst or spray, just gurgling out when I took it off completely. At this point, when taking off trying to get to cruising speed of 65, the gas pedal was not responding properly and could not rev the engine . It did get to 40 - 45 miles per hr and would stay there as long as I wanted but would not speed up normally. It would rev in park however.
What would cause the , I think, false overheating reading, and then the loss of pedal power?

Posted by on

  • 2 more comments 
  • dlongphoto Dec 26, 2008

    Thank you for your quick response. There is no fluid coming out anywhere and the levels are normal . I did not add water during this at all because of that. Could it be the thermo? It seems like it never actually was as hot as the temp gauge said.

  • Handsfull3 Jan 23, 2009

    My Montana was/is doing the same thing. At first the light only came on when I was idling. And the heater did not work. I took it to a mechanic who proceeded to change the thermastat and the water pump. I drove it home (approximately 10 miles) with no problem. The heater was also working. The next morning I got about 1 mile and the light came on and I had the same problem with the acceleration as the other person. I had to stop and cool it down. I took it to another mechanic who flushed the radiator and I still had the problem. He then took a look at the thermastat and said that it was closed(?). I took it back to the original mechanic who changed the thermastat again. It worked for about 15 miles ( with the heater working also) and then just before I got into my driveway the temp went up and light came on. I also lifted up the hood and saw no steam or anything like expected from an overheated car. Help. I am so frustrated.

  • hosborne Jan 26, 2009

    Its 10 below here and my gage goes into the red then back down to nothing. Then all of the lights went dark and the engine dies. After about 20 minutes, We jumped the car and made it 10 miles to home warning lights all the way. The heater only kicks out warm air when you rev the engine to about 2000 rpm.

  • Anonymous Mar 20, 2009

    we were driving and we saw smoke comming out of the engine coolant was leaking. we had the hose that busted fixed. was working fine the temprature was fine but then it started to pass the half line then went back down please help me.



2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

You guys have head gasket problems. Need to have heads checked for damage and have head gasket repaired. A good mechanic can do it in 16 hours on a montana,

Posted on Jan 29, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 405 Answers

You have gotten it really hot it sounds like, I would should check all my coolant levels as soon as it was cool and if you put water in it while it was hot you could have easily cracked a head. I wish I could be more helpful but if it didn't spew water out I am wondering if you have a leaking water pump or bust hose, or even if you could have a freeze plug out. Fill it up with water and let it sit and idle and see what happens. Good Luck, Hope this helps you! and Merry Christmas!

Posted on Dec 26, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My 01 Pontiac Montana is trying to overheat at high power

If your vehicle doesn't actually overheat, just getting hot, I think that's the normal behaviour for these cars. My 03 AWD behaves the same way. When driving uphill, especialy when towing, the temperature rises close to the red marking, but I have never experienced it overheating. I think that the temperature has to rise much over the normal driving temperature to activate the two electric fans.

Jul 15, 2014 | 2001 Pontiac Montana

1 Answer

2002 pontiac montana all the gage lights are on and don't shut off

Which lights? the night lights or the symbol lights. if the symbol lights are the lights that are on, you need to tell me which ones. you said all lights but if it is the symbol lights then you are telling me the battery light ,oil light ,temp light, abs light, low coolant,washer fluid,check engine,brake and so on,
let me know what is on.

Feb 03, 2013 | 2004 Pontiac Montana

2 Answers

I have a 200 Pontiac Montana and today it overheated into the red! Not sure why! I also don't have heat unless the RPMs are above 200. My fan don't kick on unless the air is on. 2 months ago I...

With the car running because it reduces the back pressure have someone that knows how to do it remove the cap from the radiator and see if the radiator is full, not the bottle but the radiator itself. If the antifreeze is not moving from the bottle to the radiator it will overheat. Not having heat unless you rev the engine makes me think the radiator is either not circulating the water or it is low.

Apr 24, 2017 | 2000 Pontiac Montana

1 Answer

2000 Pontiac Montana with coolant fans not operating.

Sensor would be the simple fix. The fans come on when the engine gets hot. At least you know the fans are working. The sensor is a simple switch controlled by heat.

Jan 30, 2018 | 2000 Pontiac Montana

1 Answer

Coolant system

think it needs more coolant added when engine is cold

Jan 18, 2010 | 2002 Pontiac Grand Prix

1 Answer

Temp gauge goes into the red while driving then back down to normal levels. Pulled over and checked the coolant level. Overflow was half full and the radiator cap was cool to the touch.

your thermostat is not opening there for not allowing hot coolant to exchange into the radiator. replace thermostat.also causing you to overheat

Jan 17, 2010 | 2002 Pontiac Montana

2 Answers

Over haeting

Had the same problem....turned out to be the water pump.

Jan 13, 2009 | 1999 Pontiac Montana

Not finding what you are looking for?
2002 Pontiac Montana Logo

976 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

81423 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22359 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides