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Old 12-14-2003, 04:21 AM   #1
PumpsGOTAWD
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Default 98 RS Overheating .. HELP Required

Hey guys ive got a stumper on my hands I was recently involved in a front end collision on my 98RS b4 the accident i never had any problem. The radiator support needed to be replaced hence the radiator was removed and reinstalled. Now that the car is back together i am Over heating when i drive the car for more than 30 mins or if i drive it shifting at a constant 4K rpm or so. When i see the needle get all the way HOT i immediatly pull over being the smart guy that i am and let it cool back down. Yes the Fans are working and Yes i have checked the coolant levels it is full FULL Full and yes even more FULL ! I at a loss of words as to what my problem could be, i do realize that the 98 is notorious for Head Gasket Failure, i sure do not want to be tearing down the motor tho in this weather If anyone has any ideas please help me out. My only other thought is that there could be air in my coolant system ???

Some helpful facts

Car has 73K on it- Never had the head gasket done
Also never had the problem until accident

SO FREAKING Frusterated as well as confused !!

Thanks for ne input in advance

Paul
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Old 12-14-2003, 08:28 AM   #2
White2.5GT
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I would suggest a compression test to find out for sure if your head gaskets are leaking, because that what it sounds like. If not try replacing the thermostat, it could be getting stuck. Those options are cheaper then a tear down, but it might come to that anyways.
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Old 12-14-2003, 01:02 PM   #3
Charlie-III
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Better yet, start the car and let it warm up.
Open the overflow cap and look for bubbles in the overflow tank. If "yes" to bubbles, best bet is head gasket.

It could be that it needs a good air purging (who did the radiator repair work, a dealer?), or a bad thermostat but I am leaning towards headgasket.
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Old 12-14-2003, 01:24 PM   #4
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Start with new t'stat, rad cap and air purging, you may need to run the car with the front up on ramps, heater on, until the fans cycle. Make sure there is coolant in the o'flow and watch for it to be drawn back in after the car cools. You will still need to monitor the coolant level for several drive cycles.

Carl
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Old 12-14-2003, 10:53 PM   #5
PumpsGOTAWD
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thanks for your replies everyone.. i noticed today that i have coolant being sprayed up on my hoof and on my battery so im leaning toward the radiator being damaged in the accident im goin to replace it and drain the coolant and replace it.. see what happens.. thanks again
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Old 12-15-2003, 02:46 AM   #6
atmosphere
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Quote:
Originally posted by PumpsGOTAWD
thanks for your replies everyone.. i noticed today that i have coolant being sprayed up on my hoof and on my battery so im leaning toward the radiator being damaged in the accident im goin to replace it and drain the coolant and replace it.. see what happens.. thanks again
Im sorry to say but it sounds more and more like the head gasket. I had this exact same problem awhile back, it was over heating and was spraying coolant all over the battery and the surrounding area. I replaced the rad cap, thermo, and had a coolant flush but to no avail. It eventually turned out to be blown head gaskets so I highly, highly recommend you get a pressure test and or a sniffer test (checks of hydrocarbons in the coolant and coolant in the exhaust if i recall). Hope youre not screwed like I was.
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Old 12-15-2003, 10:49 AM   #7
m750
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I'm sorry to say it sounds more like air trapped in his system than a HG. Yes, investigate the hg, but... examine cheapest solution first.
AO
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Old 12-15-2003, 12:36 PM   #8
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u posted on rs25 too right?

anyway, dude just bring it to a dealer let them fix it...

besides it could have been justthe air pocket, but if u keep over heating your going to blow the head gasket anyway
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Old 12-16-2003, 02:03 AM   #9
PumpsGOTAWD
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ok i think ive narrowed it to it not being the head gasket because the car is running just fine and hasnt over heated in a few days... im gonna replace the radiator and give that a shot .. wish me luck.. thanks for everyones input..
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Old 12-16-2003, 08:07 AM   #10
Kevin Thomas
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Question Well

Quote:
Originally posted by PumpsGOTAWD
ok i think ive narrowed it to it not being the head gasket because the car is running just fine and hasnt over heated in a few days... im gonna replace the radiator and give that a shot .. wish me luck.. thanks for everyones input..
What was done to your car in order to make it not overheat in a few days? This info could help someone in the future who may have a similar problem to what you are experiencing. Thanks!
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Old 12-16-2003, 06:10 PM   #11
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Yeah right. I had a failed water pump. It cooled off for a few days also then overheated. I hunted for that leak until it found me.
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Old 12-16-2003, 10:18 PM   #12
PumpsGOTAWD
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I didnt do anything except drive the car normally for the past few days... and not for long distances.. i havent had a chance to do the radiator swap yet.. possibly tommarow..
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Old 12-24-2003, 03:03 AM   #13
PumpsGOTAWD
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Well i swapped radiators, thermostat, all housing and drained and refilled the coolant and so far it has seemed to fix my problem and ive driven it hard to check. so far so good.. keep ya posted.. thx for all the help guys most of what was said was considered and most was very helpfull thx again

Paul
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Old 12-24-2003, 03:16 AM   #14
atabert
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put a gas analizer abovr the radiator and sniff for hc's
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Old 12-24-2003, 07:57 PM   #15
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where does the leak come from when it's water pump? cause my coolant is leaking too, and it's coming from bottom of the engine, and it drips off from the front crossmember.
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Old 12-24-2003, 10:17 PM   #16
PumpsGOTAWD
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Kevex i dont think that your problem is related to myne in anyway, i would check your you coolant lines that are in the back of the motor to see if that is a possibility.. the ones that run to and fro the fire wall.. they could be your problem.. good luck...

Atabert, what are HC's ?
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Old 12-26-2003, 01:39 PM   #17
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Hey Paul,

Sounds like you're going the same route that I did when my head gaskets went bad. #1 rule, if it starts to get near the "H" pull over...!!! Another thing I noticed was that right before the guage would start going up, I would loose heat. Anyway, I had the same symptoms as you're describing. I was in total denial as well...LOL. The kicker was my car was running better than it ever had. Anyway, the head gasket seemed more prone to act up if I just started the car and let it idle. It would idle for around 3-4 minutes and start dumping coolant out the overflow, the temp guage would neve budge off the "C". Sometimes I could drive the car for weeks at a time and it wouldn't overheat or spill coolant. Other times it would spew coolant 2-3 times in a 20 mile trip. There seemed to be not rhyme or reason to it.

I hope your problem was the radiator. I case you do have to do the head gaskets, here's a few pointers.

* It IS possible to replace the head gaskets without having to pull the engine. You just have to unbolt the motor mounts and pitch mount then jack up the engine enough so the heads will clear the frame rails.
* Get an air compressor and pneumatic impact wrench. Even if you have to rent one it'll make getting the crank pully bolt and cam bolts out much, much easier. I killed at least 3 hours just getting them out by hand.
* Make sure one of the first things you do after removing the radiator is to try to break free the crank pully/harmonic balancer bolt. I had a #itch of a time getting mine off. A strap wrench and a piece of pipe on a breaker bar and a whole lotta muscle finally got it loose.
* Borrow a good torque wrench, you'll need one that goes down to inch pounds and one that goes up to around 100 foot pounds.
* Use all new gaskets for the front cam covers, intake, exhaust and head cam cover bolts. If you reuse the old ones you'll most likely be replacing them later due to oil leaks.

That's about all I can think of now. Shoot me any questions you may have, the head gaskets are not that hard, just time consuming.

Regards,
Chris
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Old 01-04-2004, 01:31 AM   #18
PumpsGOTAWD
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Well chris im pretty sure that you are right, its the head gasket.. it just started over heating again.. and now im throwing a CEL i havent had it scaned yet, but i have the same problem where my heat goes ice cold and then if i crank the heat the needle will start to drop from the H rapidly and i get the heat back... its gotta be the head gasket.. i plan i just daily driving the car with the head gasket goin till its gone and i have to do the work. im gonna be doing the ej22T swap this spring hopefully i can make it last that long thanks
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Old 01-04-2004, 04:06 AM   #19
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Been here, done this. It's the head gasket. I drove for around four months with it blown. I babied it until I got the money together (around 3K) and then got the job done.
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Old 01-04-2004, 01:27 PM   #20
FletchMY98
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Hey,

That sux...sorry to hear that it turned out to be the head gaskets.

Just FYI...Its only about $100.00 in parts to change out the headgaskets. It does take quite a bit of time though, it took me about 10 hours to do mine. That did include a bunch of other routine maintenance, spark plugs, wires, air cleaner, fuel filter, PCV valves, coolant flush, etc. The only special tool you'll need is a torque wrench. An impact wrench is recommended though.

Just some food for thought. You may want to consider changing them out now. If for some reason your engine swap gets delayed you're gonna have problems. I guarantee the head gaskets will get to the point where the car will overheat everytime you drive it. I tried to limp mine along till warm weather...didn't happen.

Let me know if you decide to change them out, I could probably come down and give you a hand with them. Perhaps trade my time for some of the parts we talked about when I picked up the last bunch.

Good Luck,
Chris
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Old 01-04-2004, 06:02 PM   #21
FletchMY98
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Just another FYI...There's a garage day on Jan 10th over near Newport RI.

http://forums.nasioc.com/forums/show...hreadid=475644

Chris
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Old 01-04-2004, 09:49 PM   #22
PumpsGOTAWD
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Thanks for all the help chris, i will keep in mind starting the project sooner than later, i just want to see what i can get outta her. But wen the time comes i will keep your assistance in mind, bummer, I wont be able to make it to that garage day unfortunatelly i have plans.. thank again
Paul
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Old 01-05-2004, 11:55 AM   #23
Charlie-III
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I would get all the parts together NOW.
Headgaskets, cam cover seals, spark plug hole seals, cam seals, front crank and oil pump seals, all the belts etc.

Some of the parts will have to be ordered, so get them now since they won't go bad before you use them.

Maybe get the thermostat and water pump as well since doing the belts will have all this opened up anyway.

The engine will die on a long holiday weekend and you HAVE to be somewhere. So have the parts.
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Old 01-05-2004, 02:18 PM   #24
keiper
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Looks like I've blown my as well. I should still be covered under the 5yr/60k warranty. Does the group have an opinion if I'm going to have problem with the warranty being that I have a MRT header back system on?

Thanks
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Old 01-05-2004, 04:12 PM   #25
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Charlie,

That sounds like experience talking...LOL.

Chris
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