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1999 Chevy Venture no or minimal heat

Tiny
1MOHICAN
  • MEMBER
  • 1999 CHEVROLET VENTURE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 220,234 MILES
There is no or minimal heat? Temp needle wants to travel up and down for no apparent reason, depending on speed or say at a stop sign, sometimes goes to overheat, but does not appear to overheat? Did replace rad. Cap.
Wednesday, January 21st, 2009 AT 7:29 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Cheap fix replace the thermostat then report back
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Wednesday, January 21st, 2009 AT 9:20 PM
Tiny
1MOHICAN
  • MEMBER
  • 2 POSTS
Did that already.
Sorry! I should have added that
with the cap replacement.
Looking at waterpump as my next
cheap fix, then I think I got a head
gasket problem, if that don't work?
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Thursday, January 22nd, 2009 AT 11:03 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Looking at waterpump as my next
cheap fix,

One way to test for a bad water pump is to squeeze the upper radiator hose when the engine is hot and idling. Careful, because the hose will be HOT! If you do not feel much coolant circulating through the hose when you rev the engine, the pump may be bad. The other cause might be a bad thermostat that is not opening properly (remove and inspect the thermostat), or a clogged radiator.
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Friday, January 23rd, 2009 AT 1:04 AM

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