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07-22-2007, 12:34 AM #1
- Join Date
- Jul 2007
overheating problem 2004 silverado
My 2004 silverado overheats replaced all componets water pump,clutch fan, thermostat, flushed radiator, still overheating, I replaced the fan clutch with a flx-292 electric fan and still overheats. Do any of you have any suggestion of what might be the cause of this problem.
Imperial Valley, Ca
07-22-2007, 09:56 AM #2
- Join Date
- Mar 2007
- Grand Prairie, Texas
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Have you pressure checked the system for leaks?
Are you getting antifreeze in the oil or oil in antifreeze?
After replacing the parts was the system properly refilled to prevent air bubbles, particularly in the heater core?
Is antifreeze flowing sufficiently while the engine is running to indicate no system blockages?
07-22-2007, 06:01 PM #3
2007 Ford E250(Work van) (Ya, Ya, shut up!)
1996 GMC Sierra SLE 1500 5.7L/4L60E
07-22-2007, 08:03 PM #4
Sounds like you've swapped everything else so I would test for combustion gas in the radiator. You can get a kit like the one from Lisle tools from NAPA or your local parts store. This will identify more serious trouble like a head gasket leak or cracked block/head.
There is no way to happiness....happiness is the way.:yipi:
High Desert SoCal
93 K1500 burb (personal) 350 AT 3" Lift 250K+
02 Honda Civic LX
Looking for a 1990's Miata for an engine swap
07-24-2007, 12:54 PM #5
this may sound dumb, but what about the raditor cap? did you replace it? i seen many systems overheat due to this issue. the seal is bad and does not allow the system to prusure up some and overheat.......mikeMichael Collins
1993 4X4 Suburban
many other toys as well
07-24-2007, 07:04 PM #6
did you burp the system if its like the 99 i did my like the chilton manual says which i cant remember off the top of my head but you have to run it a few thousand rpm and let drop and then bring up again and let it drop then shut if off and burp the system then do it again and it worked fine my truck hasnt gone over since been fine.
08-03-2007, 01:01 PM #7
I agree - replace the radiator cap, too.
This is normally a closed system under pressure. The added pressure helps keep the fluid from boiling. Boiling means vapor in the system - vapor means hot spots and could mean starving water pump, too.
Besides, it's only $10 at the parts store.CJ
Pleasant View, UT
1998 Tahoe LT 4dr 4wd
2004 GMC 2500HD CC / SB
08-20-2007, 04:37 PM #8
- Join Date
- Aug 2007
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