Question about 1999 Pontiac Grand Am GT

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I drive my car car and it overheats what are the common problems?

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BAD THERMOSTAT ,PLUGGED RADIATOR ,BAD WATER PUMP, BROKEN WATER PUMP BELT, RUNNING TO LEAN ON FUEL

Posted on Sep 29, 2009

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What can cause my car to overheat only when my radiator cap is on


Car Overheating? Why your Car Overheats & How to Fix It

www.vikingspeedshop.com/car-overheating-fix-prevent-future/

Rating: 4.2 - ‎51 votes
Oct 30, 2015 - The biggest cause of this is a faulty thermostat that is stuck closed. ... If the radiator cap were to be at fault you most likely would see steam from boiling coolant. My car only overheats when I accelerate hard or drive hard!

Why Is My Car Overheating and What to Do? - EnkiVillage

www.enkivillage.com/why-is-my-car-overheating.html
An overheating car can be caused by many problems. ... Why Is My Car Overheating: Possible Causes .... If you do open the hood, try to do so only when the car is cooled down. ... Never open the radiator cap while the radiator is hot, as the release of pressure could lead to serious ... I wonder if my radiator might be clogged.

Common Causes of Overheating ' ASC Industries, Inc.

asc-ind.com/cooling-system.../common-causes-of-overheating/
... injury, never, ever attempt to remove a radiator cap while the engine is hot! Anoverheated engine can be caused by anything that decreases the cooling system's ...Possible leak points include hoses, the radiator, water pump, thermostat housing, ... Be sure to use the coolant recommended by your vehicle's manufacturer.

Diagnose Engine Overheating - Auto Repair Help

www.auto-repair-help.com/auto.../diagnose_engine_overheating.php

Feb 09, 2016 | Cars & Trucks

1 Answer

P1296 Problem(vw jetta 2001 wolfsburg edition)


There is a common fault with the cam belt driven waterpump on VAG engines as they use a plastic water-drive. The water-drive on the pump shaft breaks up or free and no longer circulates the water. Replace water pump.

Feb 16, 2012 | Volkswagen Jetta Cars & Trucks

3 Answers

I have a 1996 honda accord lx noticed coolant dripping underneath towards the center of the engine, drove around car overheats while sitting doesnt overheat while driving. what do i do


My wife honda Accord 1996 have the same problem, it was the hose from the radiator to the engine leaking when the pressure goes up after a while. a new hose fixed the problem.

Sep 13, 2010 | 1996 Honda Accord

1 Answer

When idling my jeep overheats. The cooling fan is running and it speeds up when temperature goes up. The temperature gets close to 260 degrees and the engine tries to stall. when I start moving it cools...


At idling speed an engine does build up a lot of heat and the cooling fan will kick in. In slow moving traffic or traffic jams the temperature gauge can touch the red - particularly on hot days. The reason it cools down when you start moving is because of the air flow through the radiator.

Presumably there are no leaks from the cooling system otherwise you would have mentioned it. In normal circumstances the fan will not be running as you are driving at speed, as the air-flow through the radiator is sufficient to cool things. The fan only kicks in to get rid of excess heat - and this usually occurs at idling speed or after you have parked the car.

If the fan is running all the time as you drive, this points to either a fault in the fan switch, or the car is running too hot. presumably in normal driving the fan isn't running and the temperature gauge reads normal?

It is common - in stationary traffic many cars overheat (particularly big engined models) try to stall and 'cut out'. Restarting can be difficult until the engine cools down.

Is your car overheating in normal driving conditions or just at idle speed? Overheating in normal driving conditions can be caused by things like a failing water pump, blocked radiator, collapsed hose, faulty thermostat or, in the worst case scenario, cylinder head problems.

Overheating at idling speed is 'common'. Check your coolant level. If your car isn't using/losing coolant then there probably is no major problem. You can flush out the cooling system and refill with new coolant - and also check your radiator. Are the cooling fins crumbling with age? Or maybe they're partly clogged with insects and debris from the road? A blast with a hosepipe wil sort that out ..

The question is how much does your car overheat in normal driving? If it doesn't .. it appears as though you have nothing to worry about as such. Most cars have 2 speed fans... the 2nd faster stage kicks in at some point dependant on engine temperature. Perfectly normal.

Aug 14, 2010 | 2003 Jeep Grand Cherokee

1 Answer

Overheats ive tried the obvious solutions and it still overheats any suggestions


note if it overheats on the freeway or in city driving. If it overheats soon after you leave the house then in has to be the thermostat. If it overheats at city driving where there are lots of stop and go driving or while you are parked with the motor running, then check the radiator fan function properly. If it takes a while to overheat and tend to do it when driving on the freeway, it is a clogged/dirty radiator. If it looses coolant due to a leak, then it will also overheat. The least likely cause which don't even pertain to newer car is a retarted timing. A retarted timing causes a car to loose noticable loose of power accompanied by overheating. A retartded timing is usually common in older car where timing is adjustable by turning the distributor. Your car is exempt from this.

Dec 27, 2009 | 2005 Chevrolet Equinox

1 Answer

HERE IT IS. I HAVE A 2004 PASSAT. IT OVERHEATS WHILE DRIVEING IN ABOUT 2- 4 MINUTES TIME. WHEN I STOP OR PUT THE CAR IN NUTREAL IT COOLS BACK DOWN IN ABOUT 15 SECONDS. BUT WHEN IM IN PARK I CAN IDLE THE...


you have a 1.8 liter turbo engine correct? it is the water pump that is driven by the timing belt. 100% positive this is correct i have replaced countless water pumps for this reason. the reason it overheats while driving is becuase the splines on the water pumps plastic impeller are gone and it is just freewheeling on the pump shaft. at idle the pump spins slow enough to get the impeller to turn. very very very very common. replace water pump timing belt and tensioner.

Nov 02, 2009 | 2001 Volkswagen Passat

2 Answers

Seating still the car will overheat start back driving it cool ba


This is a sigh of a week water pump or sludge in the cooling system.

Oct 03, 2009 | 1998 Cadillac DeVille

1 Answer

Engine overheats while driving approx 20 mins - does not overheat in idle - radiator was changed (new)due to leak, thermostat is new and is installed correctly, new cap as well-could it be water pump? it's...


Check to see that the electric fan is coming on, there are two fans on this vehicle. The sender for the fan is right in front of the engine near the water housing, and is a common problem. Good Luck.

Sep 16, 2009 | 1999 Jeep Cherokee

2 Answers

High mileage 1996 Ford Explorer v8 overheats at 75-80 mph


if your mechanic seen no leaks from hoses or thermostat housing its sounds that either your fan clutch or your thermostat is bad. if its heats will driving streets and not highway its your fan clutch and needs to be replaced. if it overheats in streets and highway its your thermostat and needs to be replaced,you will need a thermostat and gasket with some silicone. Drain, follow the radiator hose to the housing and take 3 bolt off, clean housing well,CAREFULLY install the t-stat exactly the way is was taken out (pic), gasket,sillicone, bolt. ecc3d0c.jpg   its an easy job. Good luck!

Apr 27, 2009 | 1996 Ford Explorer

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