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92 camry engine overheats longer driving distances


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Diane
Anonymous Poster
dmelko@pwrweb.net

Aug 12, 2006, 7:04 AM

Post #1 of 4 (3558 views)
post icon 92 camry engine overheats longer driving distances Sign In

This 92 camry engine (temp gauge seems to only show overheating) overheats after driving more than 1 hour--does aok in shorter drives.Frown


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 12, 2006, 7:17 AM

Post #2 of 4 (3555 views)
Re: 92 camry engine overheats longer driving distances Sign In

Make sure radiator is full first at both cap and recovery tank. Then my guess would be the radiator is getting weak and should be checked out. Too much concentration could be a problem too, T



Guest
Anonymous Poster

Aug 12, 2006, 7:22 AM

Post #3 of 4 (3554 views)
Re: 92 camry engine overheats longer driving distances Sign In

The radiator is new and we are only using water since the overheating problem started. The water pump is the only thing not yet replaced. Fan runs off of power steeering pump and power steering pump has been replaced. Only overheats after drives longer than 1-1.5 hours.. Does not boil over but temp gauge gets high when idling after these long distances--say 100 miles.

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Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 12, 2006, 9:32 AM

Post #4 of 4 (3546 views)
Re: 92 camry engine overheats longer driving distances Sign In

It's a bit rare but you should consider a new thermostat. It's possible it doesn't open all the way and can handle shorter trips and not the long ones. It's normal for the cooling system to work harder after you slow down but by design should handle it.

You can also try running heater full blast for a minute and see if there's a big change which would be good info too if that worked. You should also be able to ask for hot A/C (highest request) which will kick in a second fan if equipped.

It's also possible that you are getting a poor signal from the temperature sending unit and will be easier to just replace it than to to try to test it.

Don't keep straight water in the system too long. Your car needs the anti-corrosion help which can't be added and still be mostly water.

I doubt the water pump is the cause. I have never taken off a water pump and found that it didn't pump water - they are almost always bad bearing or leaks and many are fine forever??

If this just creaps up the temp reading after a highway run and quickly into a slow down that could be normal but not last long. The system whoud normally take care of that quickly.

Just a note: Water boils at 212F at sealevel and each pound and with a pressure cap won't boil till perhaps 300F or so with a working 15lb pressure cap. If it doesn't hold pressure you may have some boiling going on and that will try to cool off with air bubbles which don't cool well.

Keep us posted, T







 
 
 






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