broski

i have a 95 civic lx (stock) and a few months ago my idle was surging. it would start up and balance out at about 3000 rpms, then it would slowly crawl down to about 1300 and surge between there and 700. back and forth, untill after that car was warm. then it wouldnt be a problem


then for a couple months i never had the problem. but the other day i accidently left the radiator cap off and drove about 5-10 miles :\. now its all happening again. but even after the car is warm, the surging doesnt stop. (i replaced the radiator cap)
oh ya, this only happens when i'm in neutral... :[

also, one last thing, now my overheating gauge is telling me that my car is overheating. the needle is WAY up there. and this happens after the car has been cold and ive been driving it for like 5 minutes. is this tied in with me accidently leaving the radiator cap off? or is it coincidental?

any ideas anyone?

court

you need to fill your radiator and over flowcan, and bleed your coolent.

broski

thanks. any other opinions?

is it possible i created any leaks when i left the radiator cap off?

court

its possible you might have a blown headgasket. you really cant tell unless you do fil the cool ent and bleed it, or if has black or white smoke coming out of the tail pipe

broski

yeah a blown head gasket has been considered. but there has never been any smoke coming out of the tail pipe. but my local mechanic said a catalytic converter can sometimes disguise some of the signs of a blown head gasket. but what do i know

anyways, what would i look for when bleeding the coolant to know if i had a bhg?

broski

anyways, what would i look for when bleeding the coolant to know if i had a bhg?