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Need help motor reving up and down

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Old Nov 14, 2004 | 03:35 PM
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Lowerd97's Avatar
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Default Need help motor reving up and down

i just bought a 91 civic hatch with stock everything abd the and the motor revs up and down some on seid its a head gasket i was wondering if inyone had a clue and the pasgner side floor board gets soaked when it rains ideas please help
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Old Nov 14, 2004 | 03:58 PM
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Default Re: Need help motor reving up and down (Lowerd97)

I would say the floorboard gets wet when it rains because it may not have the wheel well guards installed.

I would say clean your T/B with some carb cleaner and see of that helps the surging idle. You could also sea foam it and try and get rid of some of the carbon deposits that old motor may have.
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Old Nov 14, 2004 | 04:10 PM
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Default Re: Need help motor reving up and down (asubennett)

your heater core might be leaking, i've seen it happen before, if not, its your window seals....

as for the rapid idle, it could be your IACV.. clean it and you'll be fine, if not, replace it
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Old Nov 14, 2004 | 08:31 PM
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i will try the iacv and the water gets in just sitting there

somone seid there could be a drain hose cloged somewhare
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Old Nov 14, 2004 | 10:09 PM
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Default Re: (Lowerd97)

Check vaccuum lines too. The clogged hose might be the evaporator drain, under the dash.
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Old Nov 14, 2004 | 10:50 PM
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Default Re: (drdisco69)

PCV valve. check it out. its probable it
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Old Nov 15, 2004 | 06:19 AM
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Default Re: (Lowerd97)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lowerd97 &raquo;</TD></TR><TR><TD CLASS="quote">i will try the iacv and the water gets in just sitting there

somone seid there could be a drain hose cloged somewhare
</TD></TR></TABLE>

i would say the rev. concern is deff. the iacv , and the leakin the car if you have working a/c,it is the evap. drain clogged with debris , (only if you have working a/c ) if not then it may be a body plug leaking ...
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Old Nov 17, 2004 | 07:28 PM
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inyone no where i can get an iacv for cheap tryed autozone its like 280 thats almost what i payed for the car
what does in exactly do the idle stranenes out if i pinch the tube i was thinking get a couple of vacum caps and screw it bit i dont know if it will cause it to not pass emissions
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Old Nov 17, 2004 | 11:10 PM
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Default Re: (Lowerd97)

dude im telling you. change out the pcv valve. i had this same EXACT problem last week. swaped the (brand new) pcv valve out and it fixed the problem. its cheap to.
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Old Nov 18, 2004 | 08:30 PM
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also has a blown head gasket going tomarow to see if the head is warped pulling the head off is a pain in the a$$ made for little small hads no big american hads

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Old Nov 19, 2004 | 04:28 PM
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heads fine going to pun back todether saturday
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Old Nov 20, 2004 | 09:53 AM
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Default Re: Need help motor reving up and down (Lowerd97)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lowerd97 &raquo;</TD></TR><TR><TD CLASS="quote">i just bought a 91 civic hatch with stock everything abd the and the motor revs up and down some on seid its a head gasket i was wondering if inyone had a clue and the pasgner side floor board gets soaked when it rains ideas please help</TD></TR></TABLE>
Yup, its probably the head gasket. Change it and both the fluctuating idle and the floor board leak should be fixed.
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Old Nov 20, 2004 | 11:49 AM
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Default Re: Need help motor reving up and down (yoboslayer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yoboslayer &raquo;</TD></TR><TR><TD CLASS="quote">
Yup, its probably the head gasket. Change it and both the fluctuating idle and the floor board leak should be fixed. </TD></TR></TABLE>


WTF? um no
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Old Nov 21, 2004 | 09:23 PM
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i hate hondas what a pain in the *** to change a timing bely whos smart idea was that to use a rubber belt chain hardly ever goes out last forever got the car almost back together have to replace one of the electric fans it dosnt work
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Old Nov 24, 2004 | 06:58 PM
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got the car running i adjusted the throttle body and it idles normal now it seems to run fine havnt had a chance to see y its leaking water yet going to go see if ican get it emissioned hopfuly it well pass
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