89 crx hf,, changed radiator, thermostat, water pump.., flushed out heater core,, and changed head gasket,, why is the f***** car still overheating???? oh and the car has 260,000 Miles on it if that makes a diff,

 

could be head is warped. using wrong rad cap.
thats of what i would think of next.
btw when does it over heat? after a 30 min drive? right after you start it up?

 

damn. hmm, no leaks right. could be the head. is the fan kicking in and not shutting off or doing anything funny??

 

when does it over heat? Idle? Highway speeds? If its only at idle and low speeds you may have a fan problem. If it overheats all the time, you may not have bled the coolant system correctly. Does the system hold pressure? If theres no pressure you might also have a leak somewhere.

 

the car overheats after about 15 mins of sunday driving,, there is NO water flow AT ALL.... the radiator fan NEVER kicks on...

 

if you still have the old tstat laying around try comparing the two. The inner diameter of the new tstat could be smaller than the old one and now it's causing a flow restriction. maybe the new tstat is stuck closed. set it in some boiling water and watch it open.

 

could be plugged up in the block or head. try to do a flush of the system and see if any coolant comes out. if it does you know the system is free flowing and you gotta go back to the water pump route. let us know how this turns out

ps, kinda scary that your overheating and your fan isn't on. if it wasn't for the no flow comment i'd say fix that first, you still may have to if you can't figure the flow problem out in time. sounds like you have two problems unless only a section of the system is over heating and not the section near the sensor... good luck

 

Are you positive you have the thermostat spring facing towards the engine when it was installed? Sometimes the simplist thing can be over looked and cause major headaches

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by motoxx644 &raquo;</TD></TR><TR><TD CLASS="quote">the radiator fan NEVER kicks on...</TD></TR></TABLE>
problem solve. fix your fan part. and your golden. coulde be relay, fuse, unhooked wire.

 

did complete flush on the WHOLE system water flows EVERYWHERE,, already did the tstat in boiling water... and replaced it and checked the new one,,, took out the tstat, replaced heater core lines with clear tubing and there is visably no circulation.. took off water pump in hopes of the impeller spinning on the shaft but that failed... water pump works FINE...

what about since there are so many miles on the car that even tho the radiator flows water that it can still be bad? as far as im concerned the deal with the fan not working,,, has little/nothing to do with the problem

 

every coolant tube is HOT except the return from the tstat back to the rad...

 

man that stinks i would say since you have already replaced all that might try your gauge cluster,or better than that get a aftermarket water temp gauge,i willthink about it if i come up with any other suggestions i will let you know..... jim

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by motoxx644 &raquo;</TD></TR><TR><TD CLASS="quote">every coolant tube is HOT except the return from the tstat back to the rad...</TD></TR></TABLE> ah man ur gonna get 10% deduction for that avatar. look at me

 

yea remove that avatar

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by motoxx644 &raquo;</TD></TR><TR><TD CLASS="quote">every coolant tube is HOT except the return from the tstat back to the rad...</TD></TR></TABLE>

That's the inlet not the outlet. If that hose isn't getting hot, your thermostat isnt working right.

2 possible causes for that, one, your thermostat is fucked up. 2nd is your hose are routed wrong. There is a hose that goes from the head to the thermostat housing. That allows hot water to flow to the thermostat housing when it gets hot enough so it opens up. My guess is that it's the hoses being routed wrong. Pull out the coolant hose diagram for ur engine and double check the routing.

Btw the fan will not necessarily come on since most of the heat is in the head, where the temperature gauge sensor is also. The coolant fan switch is in the block where it would be somewhat cooler.

Janos

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by motoxx644 &raquo;</TD></TR><TR><TD CLASS="quote"> as far as im concerned the deal with the fan not working,,, has little/nothing to do with the problem

</TD></TR></TABLE>

And why is that?

The fan plays an integral part in the cooling system. You need to figure out why your fan isn't coming on, and fix the issue. Fixing the fan issue will more than likely solve your problem.

 

LOL I don't even have my fan wired up right now, and my car has never overheated. At least with me. Maybe I wasn't rough enough...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fuzzy Rhubarb &raquo;</TD></TR><TR><TD CLASS="quote">LOL I don't even have my fan wired up right now, and my car has never overheated. At least with me. Maybe I wasn't rough enough... </TD></TR></TABLE>

Well if he is so sure that everything else is correct. And that he has fixed/replaced everything else except the cooling fan, would leave me to believe that it is the issue.

 

I had the same problem, its just a fan relay if its not the fuse, the relay is all the way on your left near your airbox and is held to the frame with a little bolt.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by motoxx644 &raquo;</TD></TR><TR><TD CLASS="quote">every coolant tube is HOT except the return from the tstat back to the rad...</TD></TR></TABLE>
omg haha all bad mister. my car did that last week. turned out the head was cracked/warped. bought a whole new motor and rebuilt it fresh.
i say head is needed to be replaced.

 

THERE IS NO WATER FLOW... which i think is because of lack of pressure ( there isnt any ) the head is bbad that is the other possibility,,, i kno the hoses arnt routed wrong,, they just dont move them selves,, the tsat is GOOD i tested it it opens,, i took the tstat out and the motor flow no water

 

Are you losing any coolant? Have you checked your heater core itself? Are you getting any heat inside the car?

 

done it all... no heat inside car...

 

im looking for a new head this week i think,,, good idea?? hha

 

Ya i'd say head or head gasket probably. IS there any coolant/foam in the oil or vice versa?