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where did my compression go?

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Old 08-07-2003, 04:52 PM
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Default where did my compression go?

okay the other day one of my coolant hoses came off. and i turned the car off immediatley. after it cooled off and we refilled it with water,fixed the hose leak, and checked the oil level. it didn't crank!


so here is a list off all the stuff we have already done:

checked timing
checked for spark
checked for fuel (the injectors are spraying)
checked headgasket
checked intake manifold for clogs
checked all wiring harness conections


all we came up with was bad compression

it went like this 70-60-70-75

we did that before removing the head to find out the gasket was still good. So do you have any idea on where it might be? the compression that is.
Old 08-07-2003, 04:59 PM
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Default Re: where did my compression go? (SprayinCX)

Does the car run differently than it did before this happened? If not (and you have a high-mileage or abused engine), you might have had low compression before and you simply didn't know it. If, on the other hand, compression was good before, you probably warped (or possibly cracked) the head.
Old 08-07-2003, 05:04 PM
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Default Re: where did my compression go? (yobtah)

i had the motor competly redone with new gaskets and everything.

as of right know the car doesn't even crank! at all..........it won't catch fire.
Old 08-07-2003, 06:28 PM
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Default Re: where did my compression go? (SprayinCX)

ttt as i go to work
Old 08-07-2003, 06:55 PM
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Default Re: where did my compression go? (SprayinCX)

well you do need compression to run an engine.
Old 08-07-2003, 07:09 PM
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thats really odd... my friend doesnt have compression but his timing belt broke... you sure your timing belt hasnt broke?
Old 08-07-2003, 08:07 PM
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Default Re: where did my compression go? (yobtah)

Bad rings, bad head gasket, bad valves? Weird!
Old 08-07-2003, 08:38 PM
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Default Re: where did my compression go? (viprcr1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by viprcr1 &raquo;</TD></TR><TR><TD CLASS="quote">well you do need compression to run an engine.</TD></TR></TABLE>YES
Old 08-08-2003, 01:22 AM
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how the hell did u get those numbers if the car doesn't even crank over? doesn't the car have to crank in order to show psi on the gauge?
Old 08-08-2003, 02:29 AM
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Default Re: (LSVTECoupe)

hand crank

-Bryan-
Old 08-08-2003, 03:50 AM
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Default Re: (EGStreetHtch)

the car wiil turn over but it will not start.

no........ the timing belt was replaced about a week ago.

i am going to check to see if the head is wrapped today
Old 08-08-2003, 05:03 PM
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Default Re: (SprayinCX)

i have no idea what that could be.

TTT for you
Old 08-08-2003, 06:49 PM
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Default Re: where did my compression go? (SprayinCX)

check ALL your fuses... mainly the ones under the hood but I'd check'em all just to be sure...

you could've shorted something out by accident while working on it.
Old 08-09-2003, 03:45 PM
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Default Re: where did my compression go? (NonovUrbizniz)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NonovUrbizniz &raquo;</TD></TR><TR><TD CLASS="quote">check ALL your fuses... mainly the ones under the hood but I'd check'em all just to be sure...

you could've shorted something out by accident while working on it.</TD></TR></TABLE>

did that also i forgot to mention that
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