2002 Cadillac EL Dorado engine overheating

Tiny
THEMEATMAN
  • MEMBER
  • 2002 CADILLAC ELDORADO
  • V8
  • 2WD
  • AUTOMATIC
  • 110,987 MILES
Put in new radeator new theremstat new coolant new cap pressure tested head gasket and system runs fine for a few days coolant gets about a quart low then it starts to overheat there are no visible signs of coolant loss in or under the car or around the water pump
Thursday, December 11th, 2008 AT 1:56 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.

If the block and pressure test passes check the following:, Pressure test the Rad. Cap, Clogged radiator, air lock in the cooling system, Fan clutch, Radiator electrical fan, collaspe hoses, water pump
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Thursday, December 11th, 2008 AT 2:28 PM

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