Driving down the freeway today, My van started overheating. I check fluid regularly, and about once a week I need to top off the coolant. Well today, when I overheated, my oil light came on, there was no heat, and the reservoir was empty. I filled the reservoir, but it would not drain into the radiator, and the lines felt empty. I have no leaks (unless its happening as I'm driving) what could my problem be?
Head gasket is bad / leaking.
adding fluid on a regular basis is the first clue.
The coolant is seeping into the combustion chamber via a bad head gasket... and running out the tailpipe.
SOURCE: 2000 Sunfire coolant problem. Engine overheating,
ok, its time for a radiator flush. there is major sludge in the internals of this radiator. Make sure the thermostat is in the correct position as well. I've seen many cars come into my shop with the thermostat inserted backwards.
SOURCE: 1999 GMC Jimmy Running Hot w/ Engine coolant reservoir empty
Hi
The problem is most likely 90% head gaskets but could be intake manifold gasket leaking too. Intake gasket has to be checked when intake is removed. Might find problem there if not continue and remove heads. Bars Leak will not work.
SOURCE: Ford explorer 2000 antifreeze coolant reservoir
Ensure that there is no leak, checking all the coolant lines and the radiator.
If there is no leak and the car is consuming coolant liquid, then you may have a faulty head gasket.
What happens is that the head gasket allows coolant leaking and being vapourised inside the engine.
To find out if your head gasket is starting to go you can perform a compression test.
Regards.
SOURCE: Dodge 2002 Grand Caravan V6 3.3 engine overheating/no cabin heat.
Replace the bad radiator hose first. Second- get you special formulated anti-freeze dye from the auto store and pour it into the radiator. Third- make sure you got all the air pockets out of your system, cause the coolant system won't work with air pockets in it. Fourth- Check for leaks by looking for the colored dye. If it's not the radiator hose, then could possibly be a pin hole in your radiator. Would suggest replacing all the radiator hoses at the same time while you got the coolant system disconnected, cause you don't want to have to come back and replace another hose in a few months.
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SOURCE: mazda mpv overheating when driving
possible head gasket do a preasure test on the coolant system to see if it loses any coolant or presure drops and check for leaks hope this helps
Hello
The engine
and automatic transmission in this vehicles drive train
are fully electronically controlled by a computer called the PCM
(Power Train Control Module). Whenever a problem like this occurs the
computer stores a record of the problem (there are of course some
exceptions to this, like the fuel pump, engine coolant temperature
sensor and MAF sensor for instance) in the form of a fault code in
its memory, to read these fault codes you must have the systems
memory scanned with a special tool. Once the fault code(s) are read
you then must perform the appropriate diagnostic testing to find and
resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A
TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPEDING YOUR
HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM
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