1989 Other Subaru Models Excessive White Exhaust

Tiny
TOAN NGUYEN
  • MEMBER
  • 1989 SUBARU
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
Hi, I need help trying to find out the problem to my 1989 subaru. Everytime I add transmission fluid because there was not enough when I check the car would produce excessive white smoke. I just had my fuel injector clean 1 month ago because my mechanic thought that it would solve the problem. However, the problems persist. Can anyone help me please? Thank You
Thursday, February 7th, 2008 AT 12:51 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be a transmission vacuum diaphragm leaking into the intake manifold and being burn- If not it-might mean a blown headgasket cracked head or block

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.
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Thursday, February 7th, 2008 AT 1:19 PM

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