dip stick question.

90xj06 · Sep 20, 2008

so i was driving to school today and noticed a blue cloud. thought it was just the sea foam i put in there yesterday. after i get home i pop the hood to take a look at my make shift pcv set up. and there is oil every wear. i noticed the dip stick was not in all the way. would this allow oil to come out?

i may not have put it in all the way then i checked it yesterday.:doh:

ehall · Sep 20, 2008

Put the dipstick back in, clean the engine, then run it and look for the leak. It could come from the stick but that's not usually the source

cherokee chuck · Sep 21, 2008

Makeshift PCV? Excess crankcase pressure could be blowing out your dipstick and oil. Give us some info on your PCV mods.

bcmaxx · Sep 21, 2008

cherokee chuck said:
Makeshift PCV? Excess crankcase pressure could be blowing out your dipstick and oil. Give us some info on your PCV mods.

I installed a grommet and a standard pcv valve on my 89, it did not vent properly, It spewed oil. Had to put stock back on

88 Wagonman · Sep 21, 2008

Yeah, PCV valve on a 4.0L is a bad thing. Just clean up the CCV setup that came stock and you'll be fine. When I bought my 88 the PO put a PCV valve in, didn't figure that out until the knocking started.

90xj06 · Sep 21, 2008

well by the makeshift pcv i meant the lack of its just 2 holes on the valve cover right now.

but i put the dipstick back in and there seems to be no oil leaking so i think that was it.

bluejeepkid · Sep 21, 2008

90xj06 said:
so i was driving to school today and noticed a blue cloud. thought it was just the sea foam i put in there yesterday. after i get home i pop the hood to take a look at my make shift pcv set up. and there is oil every wear. i noticed the dip stick was not in all the way. would this allow oil to come out?

i may not have put it in all the way then i checked it yesterday.:doh:

4.0's do NOT use pcv valves all they need is a simple peice of pvc pipe

90xj06 · Sep 21, 2008

yes i am aware of this. the original ccv pipes have cracked and the grommets rotted so there is nothing on there right now. so its just open to the air.

stumpXJ · Sep 21, 2008

90xj06 said:
well by the makeshift pcv i meant the lack of its just 2 holes on the valve cover right now.

So .... you have open holes in the top of your valve cover? Are you sure you have any oil left?

~James

VTEK1 · Sep 21, 2008

def replace those, any dirt gets in there enough and say goodbye to your XJ

dip stick question.

90xj06

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ehall

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cherokee chuck

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bcmaxx

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88 Wagonman

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90xj06

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bluejeepkid

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90xj06

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