1992 Ford Bronco white smoke

98COBRA

MEMBER
1992 FORD BRONCO
V8
4WD
AUTOMATIC
160,000 MILES

My truck starts up and has its normal little whit smoke. As its warming up probaly like 2 minutes later the white smokes gets thicker. It dosent seem to overheat. I know the gaskets are probaly it but how can u test it before taking it apart to see if its the head or block.

3 Replies

DAVE H

MECHANIC
13,384 POSTS

Do a compression test on each cylinder. If you let me know the exact engine size (ie.) 5.0L/5.8L.I can give you the correct compression spec's.

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Wednesday, March 4th, 2009 AT 6:52 PM

98COBRA

MEMBER
2 POSTS

Its a 5.0 the motor seems to run fine but I think thats what im gonna do.

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Thursday, March 5th, 2009 AT 9:35 PM

DAVE H

MECHANIC
13,384 POSTS

ENGINE COMPRESSION
Check engine compression at specified cranking speed with engine at normal operating temperature, all spark plugs removed (on dual plugs, remove exhaust side only) and throttle wide open. Ensure crankcase is full and oil is of correct viscosity. With compression gauge installed, use remote starter to crank engine.
Crank engine at least 5 revolutions, and record highest reading. Repeat procedure for all cylinders using approximately same number of revolutions. Lowest compression reading should not be less than 75 percent of highest compression reading. No cylinder compression reading should be less than 100 psi (7 kg/cm2 ).

COMPRESSION RATIO SPECIFICATIONS - V8
Application. Compression Ratio
5.0L.9.0:1

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Friday, March 6th, 2009 AT 5:46 AM