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Isuzu Rodeo reaching temperature too fast
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louisj23
New User
Sep 21, 2007, 10:20 AM
Post #1 of 4
(1956 views)
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Isuzu Rodeo reaching temperature too fast
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1999 Isuzu Rodeo
94,000 miles
V6 LS
2WD
Recently had a check engine light diagnosed as excessive EGR flow. So just took it off and cleaned it out with some carb cleaner and have only seen the check engine light one time since a week ago.
Then I noticed that my temperature gauge was reading normal operating temperature at 200ish (mid-range) within just a couple minutes of driving at 20 MPH in 80 degree weather.
It has not overheated, coolant levels topped off, thermostat should be ok or it'd be overheating, the gauge pin does not immediately jump up to mid-range but takes a few minutes so it's not a stuck or jumpy gauge. How is it possible that I hit 200 degrees in 2 minutes? Also, if I leave it for an hour or two I get back in and the temperature is still rather warm, not mid-range but not cold either.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 22, 2007, 4:34 AM
Post #2 of 4
(1950 views)
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Re: Isuzu Rodeo reaching temperature too fast
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This could be normal. Engines are designed to warm up ASAP for saving fuel and lowering emissions. If it can maintain a steady operating temp and doesn't drift higher or lower I'd say it's ok.
How long it takes to cool completely down when the car is off is not a mechanical situation but the environment the car is parked in. Outdoors in a breeze will be much faster to cool off than in a closed garage for example and that would be normal,
T
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louisj23
New User
Sep 22, 2007, 6:51 AM
Post #3 of 4
(1946 views)
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Re: Isuzu Rodeo reaching temperature too fast
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True, I am in Tampa, FL but this is the first that I have noticed it after 3 years of owning this car. I have to drive this beast back to Boston next week and I'd hate to have to change a water pump or something. Seems weird that this would suddenly start happening. There couldn't possibly be any connection to a EGR valve on it's way out could there?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 22, 2007, 7:27 AM
Post #4 of 4
(1944 views)
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Re: Isuzu Rodeo reaching temperature too fast
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If car is running properly the EGR should not be the cause of this. It is possible that your radiator is maxed out with ability to exchange heat. This time of year and till Spring is not so taxing on cooling systems here. It is slightly above normal daytime temps and 40s - 50s at night which is predictable here. Taking the coatal route should yield cooler temps for your run which I'm familiar with.
Funny but not: I'm heading to Maine Sunday with aging, handicapped MOM in my real nice 89 Town Car which just yesturday decided to spring a hair spray leak in radiator which didn't wet the radiator but the water pump area so hard to find!! Got a new one on the way for a couple hours from now - whew! Easy job and not expensive either. I always carry pre-mixed coolant and (ya even extra fuel) jumper wires, oil, tire plug kit and air pump and about always can get out of a jam by myself on the road. You should do the same. A trick with cooling system leak is to cut the lower gasket on radiator cap (takes the pressure off) fill system and limp along. In belt driven fanned cars put on heat. In electric fan cars force fan to stay on with jumper wire or ask for A/C in most and highest temp setting and fan stays on for some failures where fan has an attitude.
Trick with EGRs: Sometimes the pintle will seat better it rapped on with a hammer - carefully. That's not a fix for good but a chance out of a jam.
Have a safe trip,
T
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