1998 Jeep Cherokee blown head gasket or head gasket is goin

Tiny
CAJUNLAND504
  • MEMBER
  • 1998 JEEP CHEROKEE
  • V8
  • AWD
  • AUTOMATIC
  • 111,000 MILES
I have a 1998 Grand Cherokee limited 5.2L.
I cant find out why I have a light knocking sound in the engine, and white smoke coming from the exhaust for 4 minutes after I start it up. I took the radiator cap off then started it, and fluid didn't shoot out, so I'm assuming its not a head. Plus the all fluids are fine, and they are the correct colors. I want to know if I use a head gasket sealer and that's not the problem, would it make it worse? Thanks.
Wednesday, May 19th, 2010 AT 5:48 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

Head gasket sealers can cause other problems like blocking coolant passages and radiator cores, go get a head check done, this is a chemical test to detect exhaust gasses in the cooling system, this is a very accurate way of checking for a gasket problem, start here.

Mark (mhpautos)
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Wednesday, May 19th, 2010 AT 6:01 PM

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