I have a 2000 mercury mountaineer, the gauge is starting to go up and down and the truck isn't overheating.....what can be the problem.

Asked by Shonna38 Nov 08, 2015 at 04:20 PM about the 2000 Mercury Mountaineer AWD

Question type: Maintenance & Repair

26,245

taver91 answered 8 years ago

First thing to check is the coolant level. Then proceed to more complex issues after making sure your cooling system is at the right fluid level.

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F_O_R answered 8 years ago

I would suspect your thermostat is going bad.

Mark helpful

Your Answer:

I have a 2000 mercury mountaineer, the gauge is starting to go up and down and the truck isn't overheating.....what can be the problem. 2 Answers

2000 Mercury Mountaineer AWD

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Maintenance & Repair
I have a 2004 Mercury Mountaineer, V8, AWD, My problem, I think is in the computer? When I shut the engine off and try yo exit and lock the vehicle, setting the factory alarm system it won't do it. The digital display says that there is a "DOOR AJAR". I have checked all the doors as bet I can and they appear closed. BUT the interior lights remain on and the alarm will not set because off the ajar message. Am I missing something? Is the computer having a brain cramp.? I can get the alarm to set if I manually shut off the interior/dash lights too off. then it will work but no interior lights on the dash. This is driving me nuts. Can uou help?Thanks,John 12 Answers

I have a 2004 Mercury Mountaineer, V8, AWD, My problem, I think is in the computer? When I shut the engine off and try yo exit and lock the vehicle, setting the factory alarm system it won't do it. T...

2004 Mercury Mountaineer Convenience AWD

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Maintenance & Repair
the service "servie engine soon" warning light has come on in my 2004 mercury mountaineer. it is a V8 and has about 11700 miles on it. it is in good shape and I keep up on the maintenance. My local dealer has told me the "PCM" needs to be replaced and wants to charge me over $2100 to replace it. Is this reasonable? 2 Answers

I have a 2004 V8 Mercury mountaineer with about 11700 miles on it. My "service engine soon" light came on and my local dealer told me that my "PCM" needs to be replaced and wants to charge me over $...

2004 Mercury Mountaineer Convenience AWD

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Maintenance & Repair
ok I changed the pads on all four yires and needed to replace the two rotors on the back tire of my 2000 mountaineer .my truck stops but my pedal is going all the wy to the floor what is the problem a 2 Answers

as I said my pedal is going all the way to the floor after I replaced the break pads and the rotors on the back the vehicle stops but the break pedal goes all the way to the floor

2000 Mercury Mountaineer AWD

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Maintenance & Repair
I need to know what the code p1000 means for my Mercury mountaineer 2004 2 Answers

I have a 2004 Mercury mountaineer all around drive and the code p1000 and I need to know what it is

2004 Mercury Mountaineer Convenience AWD

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Maintenance & Repair

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