dip stick

[swynx]

the oil dipstick on my 91 ford ranger v6 4.0 4x4 manual keeps popping out, i can put it in and about an hour later open the hood and itll be popped out, and it only spits oil all over the motor after i put a new thing of oil in, i changed my oil in it 2 weeks ago, cuz i noticed this, and thaught it might be outta oil but then it just spit oil all over the motor, and it leaves it about half full to 3 quarters full, ne body know why this is and will it bug ne thing when i go wheeling, and what if i like ducktape it on or something or will that cause to much compression

 

[Joe400]

i think there is a flange welded to the tube that you bolt to the block that keeps it from coming out

 

[martin]

you might want to check your crankcase breather or pcv valve is not blocked.

 

[Mark_88]

you might want to check your crankcase breather or pcv valve is not blocked.

+ 1 __ My Ranger did that all the time...spitting oil all over the place...if it's not the crankcase breather or the PCV then you may have other problems like a cracked piston or bad rings...too much pressure inside the engine...

there should be a breather tube at the top of the engine that goes into the TB...make sure that is on and clean...and also check for oil coming out the top into the TB...

 

[almostclueless]

If the dipstick always ends up withdrawn a few inches from it's normal stowed position and oil sprays out the dipstick tube the crankcase vent system isn't working as mentioned, or the rings aren't sealing at all.


As previously mentioned, I'd check the PCV system and do a compression test.

 

[srteach]

there is too much pressure in the crankcase of the engine. Everything stated in the above posts is the first step:

1. check breather tube / pcv for correct operation. There should be vacuum here when the engine is running. Replacement is cheap.
2. check intake. No oil should be in the intake. If there is, find out where it is coming from.
3. compression test for bad rings, cracked piston, bad block. This one test will show all these problems (as a group).
4. check for steady vacuum with a gauge.

Diagnostics first. Replace parts last.

 

[almostclueless]

Diagnostics first. Replace parts last.

NICELY SAID.