my problem is still not solved
#1
07-15-2007 | 02:26 PM
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my problem is still not solved
i made a post about 2 weeks ago about my car overheating problem, basically when i go over 75 mph it starts to overheat, but when i get down to 65 mph the needle goes back towards the middle....... its like i cant go over 75 mph for over 2 mins or my engine will overheat.....it goes to about 2/3 up the gauge, i changed the thermostat, flushed my radiator, and i have plenty of coolant, i was thinking the water pump but wasnt sure, anyone??? andits amostly stock motor with 119k and 5spd tranny on a 92 civic lx
#2
07-15-2007 | 02:43 PM
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From: Cornwall, PEI.
RE: my problem is still not solved
Hmm... well if it is only 2/3 that may be ok, but if it is way up there then, not so much ok. May be the waterpump, if you replace it then i would suggest changing your timming belt while it is off.
#3
07-15-2007 | 03:10 PM
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From: Brownsburg, IN 46112
RE: my problem is still not solved
well if ya replaced the timing belt and not the water pump EVER....
might wana replace the water pump. and why not replace the belt since its torn apart.....
might wana replace the water pump. and why not replace the belt since its torn apart.....
#5
07-15-2007 | 03:52 PM
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From: Brownsburg, IN 46112
RE: my problem is still not solved
what it says 
your motor needs to pump radiator fluid around and back into radiator which pulls in the cooler fluid as well....
think of it this way..... the faster the pumping/ water flow... the faster water moves around and pumping in fresh cool fluid....
your motor needs to pump radiator fluid around and back into radiator which pulls in the cooler fluid as well....
think of it this way..... the faster the pumping/ water flow... the faster water moves around and pumping in fresh cool fluid....
#7
07-15-2007 | 04:03 PM
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From: Brownsburg, IN 46112
RE: my problem is still not solved
MAYBE...........
im not gonna say definatly... BUT thats the typical reason for overheating at higher speeds.......
waters just not geting circulated around enough for it to get pumped into the radiator to be cooled and drawling in the cooler fluid....
im not gonna say definatly... BUT thats the typical reason for overheating at higher speeds.......
waters just not geting circulated around enough for it to get pumped into the radiator to be cooled and drawling in the cooler fluid....
#8
07-15-2007 | 04:09 PM
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From: South Central
RE: my problem is still not solved
Have you ever changed the timing belt? If so did you replace the tensioner? The only thing I can think of is the belt tensioner(located near your water pump behind the timing cover). Try this. go down a road and do 75mph in 5th, look at your rpm's then get on a slower paced road and put it in a lower gear, kepping it at the same rpm you are at when in 5th at 75mph, like say 3rd gear at 45mph or what ever will get you that target rpm point. Drive like that and see if your temps go up like before. If so I'd say it is your belt tensioner, the higher the rpm the more pull/stress is going to be put on the tensioner. Your at 119k miles anyway and if it has not happened you need to change your timing belt, belt tensioner, and water pump anyways
#9
07-15-2007 | 04:21 PM
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RE: my problem is still not solved
ORIGINAL: Marty
Have you ever changed the timing belt? If so did you replace the tensioner? The only thing I can think of is the belt tensioner(located near your water pump behind the timing cover). Try this. go down a road and do 75mph in 5th, look at your rpm's then get on a slower paced road and put it in a lower gear, kepping it at the same rpm you are at when in 5th at 75mph, like say 3rd gear at 45mph or what ever will get you that target rpm point. Drive like that and see if your temps go up like before. If so I'd say it is your belt tensioner, the higher the rpm the more pull/stress is going to be put on the tensioner. Your at 119k miles anyway and if it has not happened you need to change your timing belt, belt tensioner, and water pump anyways
Have you ever changed the timing belt? If so did you replace the tensioner? The only thing I can think of is the belt tensioner(located near your water pump behind the timing cover). Try this. go down a road and do 75mph in 5th, look at your rpm's then get on a slower paced road and put it in a lower gear, kepping it at the same rpm you are at when in 5th at 75mph, like say 3rd gear at 45mph or what ever will get you that target rpm point. Drive like that and see if your temps go up like before. If so I'd say it is your belt tensioner, the higher the rpm the more pull/stress is going to be put on the tensioner. Your at 119k miles anyway and if it has not happened you need to change your timing belt, belt tensioner, and water pump anyways
i already tried that, it usually depends on the speed im at, if im at 70-75 mph, it overheats, but if i go down to 60-65 mph the needle goes down to the middle, put it this way any speed over 70 mph it starts to overheat, i bougth this car about a year ago, ill look through the car repairs from the previous owner and see of the timing belt, tensioner and water pump were changed, what is the purpose of the tensioner??
#10
07-15-2007 | 04:26 PM
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From: South Central
RE: my problem is still not solved
It keeps your timing belt tight which in turn spins your water pump. just try it though, start your car and let it warm up, then go out and drive in 3rd gear at 3500ish rpm's for about 3/4 miles. Worth a try to trouble shoot a little. Unless you have allready done this. Good luck man.