extreme loss of power....

jeeperdeadhead · May 23, 2009

it started a couple of days ago and is getting alot worse. i step on the gas and it barley accelerates and has no power whatso ever , and the engine is very loud and noisy , especially when going up hills. i let my friend drive it , and he stepped on the gas wayy to much and it overheated and oil started leaking out of the valve i think. after that i took over and baby it.it doesn't leak anymore but it still runs and drives but the same problem. no power at all. very noisy and has trouble going up hills especailly. and helpful advice please ?

joe_peters · May 23, 2009

Compression test.

jeeperdeadhead · May 23, 2009

how do i do that? and i didn't mention i didn't tune it up at since i bought the jeep 3 years ago. so maybe maybe some new plugs and cap and rotor ?

wim hoppenbrouwers · May 23, 2009

jeeperdeadhead said:
how do i do that? and i didn't mention i didn't tune it up at since i bought the jeep 3 years ago. so maybe maybe some new plugs and cap and rotor ?

:twak:

jeeperdeadhead · May 24, 2009

ok , did the compression check and everything is at normal. now that i had my other friend look at it , and drove it , it sounds like Air is just shooting out of the engine, all i can hear is AIR, and still an extreme loss of power ?

wim hoppenbrouwers · May 24, 2009

Hallo. Check the vacuum lines and the bolts of the exhaust manifold. (for a start)

'92 XJ

fubar XJ · May 24, 2009

You might have a clogged catalytic converter, loss of power, overheating, all signs of this.

winterbeater · May 24, 2009

What did the spark plugs look like when you pulled them? What color were they? (white, tan, black, oily) How about the gap? (.035", .050") What did the compression test actually check? (PSI)

You can check for cat conv flow by hooking a vacuum gage up to the intake manifold. Steadily decreasing vacuum after start-up indicates blockage in the exhaust.

kennzz05 · May 24, 2009

CLOOGED CAT CONV

jeeperdeadhead · May 29, 2009

how would i tell for sure ? please i don't have alot of money, and i can't afford to take it to any garage and get ripped off by a mechanic. and can it possible be an intake gasket ?

Talyn · May 29, 2009

Where do you hear it sucking air?

joe_peters · May 29, 2009

You can hook up a vacuum gauge to the intake manifold, start the engine and then slowly open the throttle. Plugged cat would back up pressure into the manifold.

selarep · May 29, 2009

fubar XJ said:
You might have a clogged catalytic converter, loss of power, overheating, all signs of this.

x2, i had the same problem as you. i had a bad cat.

jeeperdeadhead · May 29, 2009

it sounds like its coming somewhere from the engine , sorry for the lack of knowledge? im not very mechanicly inclined like some of you folks are

extreme loss of power....

jeeperdeadhead

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joe_peters

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jeeperdeadhead

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wim hoppenbrouwers

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jeeperdeadhead

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wim hoppenbrouwers

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fubar XJ

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winterbeater

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kennzz05

basic dumbass

jeeperdeadhead

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Talyn

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jeeperdeadhead

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