COOLING PROBLEMS!

JAKETIPPETS

MEMBER
HONDA ACCORD

Hey, I own a 93 honda accord with just under 200 k miles and it has a small 2.2 litre engine. It was running hot so I checked the thermostat, and the thermo gasket blew, so I replaced it and the themostat. Well now when I turn the engine on it idles at 1500 rmp then jumps to 2500 rpm for just a second then goes back down. It will rev up and down and up and down after about ten minutes the engine gets hot again! The fans come on and I have bled the system. The throttle cables dont move the engine is just reving up and down by itself. Does anyone know what might cause this?

Friday, November 16th, 2007 AT 11:37 PM

1 Reply

MERLIN2021

MECHANIC
17,250 POSTS

Vacuum leak is a concern when the idle rises and falls, any foam or bubles in the radiator? Get a can of spray gumout, spray around the intake manifold and vac lines, if the idle increases you found a leak, any whit smoke comming out of the exhaust? If so you may have a head gasket or warped head problem. See about getting a compression and block test.

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Saturday, November 17th, 2007 AT 8:16 AM