Question about 1991 Mazda MPV

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After 15-20 minutes driving over 45 mph Temp guage climbs to peg

No leaks dripping, after 16 minutes of driving temp slowly starts climbing to peg- Turning on heater&blower cools it back to normal gauge reading.Have a loose alt/fan/pump belt as prior owner destroyed/locked alt. adjst. bolt. No head gasket indicators at all.

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Get yourself a stilson wrench and remove adjuster bolt then sort out the belt tension.......(you could also weld a nut to the bolt head to give you some leverage.)

Posted on Jul 30, 2010

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Posted on Jan 02, 2017

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Temp guage climbs to high nml then a minute later it drops back to low nml


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1998 subaru forester overheating heater blows cold air


Any chance of a head gasket leak? Is the coolant level still full? These were known for head gasket issues. Coolant is a closed system and level will not drop unless there is a leak. Make sure there is no air in the system. Replace the radiator cap to make sure that it is operating properly.

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I have a 92 maxima se , i have replaced the water pump, both temp sensors near the fuel rails. the car will idle fine and drive fine, until you get up to highway speed, then it slowly starts to run hot....


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My 2002 jeep grand cherokee will sometimes over heat when climbing big hills. It has been an intermitten problem. A shop replaced the clutch fan, water pump and thermostat. After repaired ran it well over...


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My 2003 Explorer overheats when I turn the A/C on.


Q: Temp starts to climb by how much? If the vehicle interior is hot"over 90" , keep in mind the heat in the vehicle is being absorbed by the a/c and carrued out to the "condensor" in front of the engine radiator. Engine temp should be expected to climb somewhat. As the interior cools down the less heat is taken to the font and forced through the engine radiator. It should peak out ,then staer deopping or stabilize. On initial entry of vehicle on hot days it would help to open the windows for a mile or so to purge excessive heat from passenger compartmentw/AC OFF. OUTSIDE CAN BE 90 AND THE INTERIOR OF A CLOSED UP VEHICLE CAN CLIMB TO 120 DEGREES + mID 80'S IS HANDLED WITH GREATER EASE FOR A COMBINATION OF TECHNICAL REASONS OF WHICH WOULD BORE YOU.It sounds like all is well so be cool(pun) and don't waist money chasing a ghost. Happy trails. Oh, The auxillary fan is good to speeds up to 35 mph. Above 35 the forced air from the vehcle speed does the fans job.

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