temperature gague readings / car runs hot?
#1
temperature gague readings / car runs hot?
ok... on my car, if i just city drive, it gets to a little under half way
but if i go for a spirited city drive, ti gets to middle
on the freeway, it seems to rise slowly from middle to a little over middle
on a curvy road and over 5000rpom, it seems to be on 3/4 up... sometimes even 4/5!!
is that normal? or is there something wrong?
what should i do? i dont want to overheat it..........
but if i go for a spirited city drive, ti gets to middle
on the freeway, it seems to rise slowly from middle to a little over middle
on a curvy road and over 5000rpom, it seems to be on 3/4 up... sometimes even 4/5!!
is that normal? or is there something wrong?
what should i do? i dont want to overheat it..........
#3
*nods* Mine (S4) was having problems with the gauge getting uncomfortably high. There are a few things to check.
See if your fan clutch is working. With the engine hot, the fan should NOT spin freely - if it does, the clutch is gone, you'll need to replace it or put an e-fan on it. If it's working, good. Let it be.
If the thermostat hasn't been replaced, now is a good time to. Mazda OEM, not aftermarket. That fixed my problem - and an older thermostat may be fine until things get really warm, then stop working properly. Mine had no problems until I got things too warm because of a bad fan clutch (not overheated, just a bit warmer than they should be). Then it stopped functioning properly.
Finally, what kind of car do you have? If it's a non-turbo, you shouldn't have cooling problems at all. If it's a turbo, and you've done some modifications to it, you may just be outpacing what the stock cooling system & radiator can handle.
-=Russ=-
See if your fan clutch is working. With the engine hot, the fan should NOT spin freely - if it does, the clutch is gone, you'll need to replace it or put an e-fan on it. If it's working, good. Let it be.
If the thermostat hasn't been replaced, now is a good time to. Mazda OEM, not aftermarket. That fixed my problem - and an older thermostat may be fine until things get really warm, then stop working properly. Mine had no problems until I got things too warm because of a bad fan clutch (not overheated, just a bit warmer than they should be). Then it stopped functioning properly.
Finally, what kind of car do you have? If it's a non-turbo, you shouldn't have cooling problems at all. If it's a turbo, and you've done some modifications to it, you may just be outpacing what the stock cooling system & radiator can handle.
-=Russ=-
#5
Also, check to make sure the underbody cover (?) is in place. It bolts in under the engine compartment, and directs airflow. If it's missing, a lot of air will just skip out under the radiator, and on the highway where ram air is the bulk of the cooling, you'll have problems.
-=Russ=-
-=Russ=-
#6
seven-less
Join Date: Apr 2003
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if the cooling system is working like it should, you will never need the underbody trays. it's a good thing to have, but that should'nt be the culprit. do what russ said though. install a water temp. gauge too. but it's pretty safe to say, you're over heating. make sure your sytem is bled. are the radiator hoses expanded?
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#10
Mazdatrix is where I purchased mine.
If the temperature is "jumping" like you describe, I'd place money on a bad thermostat. If it's sticking, it will cause what you're seeing.
-=Russ=-
If the temperature is "jumping" like you describe, I'd place money on a bad thermostat. If it's sticking, it will cause what you're seeing.
-=Russ=-
#11
thank you for the replies!
Also, I have two more question -
how much would the thermostat cost? and are they all standard? i think this might be a good chance to get a 165 ish one?
where exactly is the idle mixture screw and what does it look like? i cant seem to find it near my airbox....
Also, I have two more question -
how much would the thermostat cost? and are they all standard? i think this might be a good chance to get a 165 ish one?
where exactly is the idle mixture screw and what does it look like? i cant seem to find it near my airbox....
Last edited by slpin; 11-18-04 at 05:10 PM.
#12
I R SAD PANDA W/O BAW
Mazda OEM and they are cheap at www.mazdatrix.com or www.mazdaformance.com
#14
I wish I had a turbo....
Join Date: Oct 2004
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Yeah the Mazdatrix ones should work just fine (the only problem being shipping if you need it bad), and the OEM dealer price is only $18.20 if you need one tonight and have to go to a Mazda dealer
#18
Rotaries since 1972
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A bit on info about the under engine plate. It is not there to help cooling or cooling airflow as used with an aircooled engine.(Many VW owners killed their engines by leaving the cooling tin off because it didn't look pretty!) It has two designed uses. 1. Smooths the aerodynamics of the underbody for less parasitic drag. 2. Acts as a barrier to protect the engine from thrown up debris, sand, water, etc. (I once lost an engine on an RX-4 because a small stick kicked up and passed through a slot in the plate. It hit and broke off the ceramic head on the oil sensor, causing the oil to drain and disconnecting the oil idiot light ("4s" didn't have oil gauges, but I added one to all of my non OEM oil gauge equipped rotaries after that!) I found out that the lower oil sensor checked the oil level in the pan and when the oil was low, the sensor grounded lighting the light. No ground to the wire = no light. The engine temp gauge started going up and before I could get to the side of the highway, the engine fried. Luckily the dealer decided to replace the engine under warranty. (Had 51000 miles on a 50,000 mile warranty, but the dealers took care of their customers back then!!) That was a one in a million thing to happen. The stick was still in the slot when they pulled the engine.
#20
Good to hear! When I was having cooling issues, I debated upgrading the radiator, but the $20 thermostat completely fixed it. Sometimes it's the simple things...
-=Russ=-
-=Russ=-
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