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Engine Overheating PLEASE HELP!

 
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Old 08-06-2008, 12:50 AM
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Engine Overheating PLEASE HELP!

So ive got a 98 5th gen and im having a problem with it overheating. ive changed the thermostat, radiator cap, got all the bubbles out of cooling system, adjusted timing and cams, had full leak down test, checked relay, fan switches, and replaced gauge. The car continues to overheat mostly in stop and go traffic and in town driving, not so much on the freeway. I have no idea what the hell is wrong with this thing and i really need somebodies help. Please help me out, thank you!
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Old 08-06-2008, 01:04 PM
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Re: Engine Overheating PLEASE HELP!

well i knew someone that had the same problem and their engine was overheating because it was made performance and couldn't handle just stop and go it had to have air going into it to keep it cool. could be the same problem...have you made a lot of upgrades? is there any other problems with the car that might have caused cooling problem?
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Old 08-06-2008, 01:49 PM
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Re: Engine Overheating PLEASE HELP!

there are a few upgrades but not too many that i think would cause this kind of overheating. it has adjustable cams that are right now at 0, MDS (or MSD i cant remember exactly) in the distributor, neuspeed headers, custom cat, and Tanabe Hyper Medallion Exhaust. Those are the only engine upgrades. So im not too sure. What upgrades did your friend have that made his car performance that would make it overheat in stop and go?
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Old 08-06-2008, 02:00 PM
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Re: Engine Overheating PLEASE HELP!

Head gasket???? Could possably be, Make sure your antifreeze is staying full.
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Old 08-06-2008, 04:11 PM
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Re: Engine Overheating PLEASE HELP!

Does this happen only when you have the AC on?
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Old 08-06-2008, 04:26 PM
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Re: Engine Overheating PLEASE HELP!

Water pump homeskillet!!

Make sure your water pump isnt shot to hell, that is usually the cause of an overheating problem. Also, if it is shot, get the timing belt done too, they are both right in the same area, unless u just changed the timing belt like 20,000 miles or less ago, then it's not worth it.
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Old 08-06-2008, 06:50 PM
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Re: Engine Overheating PLEASE HELP!

yea it does it when the AC is on but it also does it when the AC isnt on. Wouldnt the leak down test show if it was the head gasket? theres no leaking or fluid loss. I replaced the timing belt and water pump less than 20,000 miles ago. think its possible that the water pump that was put in was a P.O.S. and failed already? Thanks guys!
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Old 08-06-2008, 06:58 PM
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Re: Engine Overheating PLEASE HELP!

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Originally Posted by pbfanatic View Post
So ive got a 98 5th gen and im having a problem with it overheating. ive changed the thermostat, radiator cap, got all the bubbles out of cooling system, adjusted timing and cams, had full leak down test, checked relay, fan switches, and replaced gauge. The car continues to overheat mostly in stop and go traffic and in town driving, not so much on the freeway. I have no idea what the hell is wrong with this thing and i really need somebodies help. Please help me out, thank you!
head gasket very rare but unfortunit
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Old 08-06-2008, 07:00 PM
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Re: Engine Overheating PLEASE HELP!

head gasket
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Old 08-06-2008, 07:23 PM
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Re: Engine Overheating PLEASE HELP!

Does the fan come on when you shut the engine off? Try pulling over in traffic, shutting engine off and prop the hood or crack it until you're moving again. Lousy solution for now, but better than grinding teeth and swearing when you're sweating buckets (as needle enters the 'h' point)...also it prevents a cracked block or blown gasket. Same problem here with my 3rd gen. I know there wouldn't be a problem if the fan actually came on when it should, but only does when I shut the engine off - 5 min and good to go again. ANYONE HAVE SOLUTIONS?? I DON'T WANNA GO BACK TO FORD's!!!
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Old 08-06-2008, 07:26 PM
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Re: Engine Overheating PLEASE HELP!

what kind of thermostat did you use? and how did you get the bubbles out?
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Old 08-06-2008, 07:26 PM
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Re: Engine Overheating PLEASE HELP!

and whats your mix of coolant:water?
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Old 08-06-2008, 08:28 PM
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Re: Engine Overheating PLEASE HELP!

I had a similar problem. Oil in my coolant, car was overheating, Oil in all 4 spark plugs, big mess. Turned out it was the head gasket. The dealer is taking care of everything. I've only had the car for 1.5 months! When I talked to them today they said the car is running fine but its turning off on its own. Any idea what can be causing it?
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Old 08-06-2008, 09:28 PM
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Re: Engine Overheating PLEASE HELP!

Also have your cooling system pressure tested
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Old 08-06-2008, 09:49 PM
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Re: Engine Overheating PLEASE HELP!

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Originally Posted by Michelle V-Tech View Post
When I talked to them today they said the car is running fine but its turning off on its own. Any idea what can be causing it?
I heard that the ignition switch can do that. There was a recall for the Preludes ignition switch because it shut the car off on its own
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Old 08-06-2008, 11:27 PM
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Re: Engine Overheating PLEASE HELP!

Quote:
Originally Posted by pbfanatic View Post
So ive got a 98 5th gen and im having a problem with it overheating. ive changed the thermostat, radiator cap, got all the bubbles out of cooling system, adjusted timing and cams, had full leak down test, checked relay, fan switches, and replaced gauge. The car continues to overheat mostly in stop and go traffic and in town driving, not so much on the freeway. I have no idea what the hell is wrong with this thing and i really need somebodies help. Please help me out, thank you!
Ok first you need to do some trouble shooting... Lets start off by checking your water check your relief canister and radiator for a proper fill of coolant and make sure no foreign substance.. Keep in mind you need to have a good mix of anti freeze and water and not just water. Anti freeze provides 3 services to the coolant system 1) its lowers freezing point 2) it raises the boiling point so the coolant doesn't boil and lose coolant potential and 3) it provides protection against the calcium build up which and cause over heating. Then start your car, as it warms your thermostat will open, when it opens the hose on top of the radiator will get warm and eventually hot. This will indicate your thermostat is working. However usually when thermostats go bad they stick open meaning your car will stay cooler then usual and take longer to warm up to operating temp. Second you you can turn your heat on in the car.. is it hot? if so this also indicates that fluid is flowing and your pump is working. Usually when pumps go bad they leak very badly. Nest its time to check your fan, is your fan turning on? is it pulling air through the radiator to the motor or blowing the other way? if that all checks fine you need to peep into your radiator. maybe it has gathered so much calcium deposit its not doing its job any more. Try a flush and see what happens..
that should give you a good start go through that and give us an update..

EDIT- i forgot to mention that since its overheating when your stop and go and not freeway that tells me its fine with alot of air blowing past the radiator... This could be an indication of deposits on the coolant system IE calcium in the radiator.. or your fan isnt working properly... just and FYI but you should be able to diagnose those going through what i said...

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Old 08-07-2008, 12:26 AM
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Re: Engine Overheating PLEASE HELP!

Okay so im having the same problem. My engine has been heating up alot faster then usual and also sometimes it over heats pretty bad. I heard before if its over heating and i turn on the heat then it cools it down and that seems to work. I was wondering if a radiator flush might help? Any suggestions about that?
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Old 08-07-2008, 12:31 AM
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Re: Engine Overheating PLEASE HELP!

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Originally Posted by coachroy View Post
Okay so im having the same problem. My engine has been heating up alot faster then usual and also sometimes it over heats pretty bad. I heard before if its over heating and i turn on the heat then it cools it down and that seems to work. I was wondering if a radiator flush might help? Any suggestions about that?
Yes... when you turn on your heat you cause the heater cores fan to turn on. this in turn creates a bit of a mini radiator (thats all the heater core is really but sometimes made of a different material to actually retain heat longer) and this extra mini radiator causes the car to cool down. Because this is happening this tells me your actual radiator and coolant is not working to its full potential.
Whenever going through a process of elimination it is always best to start with the least expensive fix first. I would try to trouble shoot as best as possible and do a flush... There may be such an amount of deposit on your radiator that you will soon again have this problem if the flush actually helps.. This is another good example of why to have a good mix of anti freeze to water.
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Old 08-07-2008, 07:32 AM
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Re: Engine Overheating PLEASE HELP!

+1 on the flush. i bought a flush and ran it through. when it came out, alot of brown crap came out. to the op, for thermos - only use oem.
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