LT1 overheating... little bit wierd. Help
Thread Starter
Joined: Oct 2005
Posts: 2,336
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From: wyoming @ 12000 DA...
LT1 overheating... little bit wierd. Help OK... my car only does this in stop and go traffic. If im on the interstate the car is loving life.
It is a 96 LT1 trans am.
I checked all three relays. All good. The 2 fuses are good. All grounds are good. If i jump the relays, the fans kick on. If the car is running, and i umplug the engine coolant temp on the water pump (so the PCM thinks the car is like 300+ degrees), in a short time both fans kick on.
Other wise the fans seem to never turn on. I can watch my gauge go to something like 230 degrees... and occasionaly it will creep back down to 190's. So im thinking the ECT sensor is bad.
What else can i do to figure out why my coolant fans are not turning on? And is this the sole reason my car could be over heatings in stop and go traffic? Does it douns like a ECT sensor?
THanks
NIck
It is a 96 LT1 trans am.
I checked all three relays. All good. The 2 fuses are good. All grounds are good. If i jump the relays, the fans kick on. If the car is running, and i umplug the engine coolant temp on the water pump (so the PCM thinks the car is like 300+ degrees), in a short time both fans kick on.
Other wise the fans seem to never turn on. I can watch my gauge go to something like 230 degrees... and occasionaly it will creep back down to 190's. So im thinking the ECT sensor is bad.
What else can i do to figure out why my coolant fans are not turning on? And is this the sole reason my car could be over heatings in stop and go traffic? Does it douns like a ECT sensor?
THanks
NIck
The fan settings are really high stock. you can have them lowered or get a manual fan switch. also turning the heat on with the defroster seems to help. turns the fans on and uses the heater core as a small radiator. my car does the same thing.
Thread Starter
Joined: Oct 2005
Posts: 2,336
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From: wyoming @ 12000 DA...
Originally Posted by FlamingChicken
The fan settings are really high stock. you can have them lowered or get a manual fan switch. also turning the heat on with the defroster seems to help. turns the fans on and uses the heater core as a small radiator. my car does the same thing.
Originally Posted by Dragframe
Other wise the fans seem to never turn on. I can watch my gauge go to something like 230 degrees... and occasionaly it will creep back down to 190's. So im thinking the ECT sensor is bad.
The absolute cheapest way to fix it would probably be a mail order tune. Check out pcmforless.com or madz28.com. I think either of them will do it for about $50 if that's all you want changed.
Originally Posted by Dragframe
And is this the sole reason my car could be over heatings in stop and go traffic?
Thread Starter
Joined: Oct 2005
Posts: 2,336
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From: wyoming @ 12000 DA...
awesome man...
EDIT for my stupidity and not reading your post all the way..
is there a LT1 edit type of thing that i can drop some cash on and do it myself?
Thanks
EDIT for my stupidity and not reading your post all the way..
is there a LT1 edit type of thing that i can drop some cash on and do it myself?
Thanks
Last edited by Dragframe; Nov 21, 2005 at 10:14 PM.
Originally Posted by NXSLT1
Get tunercat, it's alot cheaper. You'll have to have a cable to hook it up to a computer too.
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Originally Posted by Dragframe
awesome man...
is there a LT1 edit type of thing that i can drop some cash on and do it myself?
is there a LT1 edit type of thing that i can drop some cash on and do it myself?
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Verdad Gallardo Thread Starter
Joined: Oct 2005
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From: wyoming @ 12000 DA...
how much of a learning curve is it (tunercat/lt1 edit)? I mean, at the end of this year when i go to build my motor it would come in handy to have.
Im willing to drop the cash if you think i will be able to teach myself so that it will actually do me some good! lol.. thanks!
Im willing to drop the cash if you think i will be able to teach myself so that it will actually do me some good! lol.. thanks!
Thread Starter
Joined: Oct 2005
Posts: 2,336
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From: wyoming @ 12000 DA...
well one question i have is why in the hell are they still using serial cords on that tunercat? that is old old stuff. Some kid of f-body.com fried his PCM... they think it had somethign to do with the slow and inreliable transfer rate of the serial cords.... bummer...
but thanks for the info... if i dont go with a mail order tune... i'll have to get tuner cat or something. I wont stand for my car even getting near 210 degrees.
but thanks for the info... if i dont go with a mail order tune... i'll have to get tuner cat or something. I wont stand for my car even getting near 210 degrees.
Last edited by Dragframe; Nov 21, 2005 at 11:39 PM.
Originally Posted by Dragframe
well one question i have is why in the hell are they still using serial cords on that tunercat? that is old old stuff. Some kid of f-body.com fried his PCM... they think it had somethign to do with the slow and inreliable transfer rate of the serial cords.... bummer...
Originally Posted by Dragframe
but thanks for the info... if i dont go with a mail order tune... i'll have to get tuner cat or something. I wont stand for my car even getting near 210 degrees.
TECH Enthusiast
Joined: Sep 2004
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From: Clarksville,Tn
You can always do an OBD1 conversion if you don't have to do emissions testing. That's the cheapest route if you wanna do it yerself. Tunercat for OBD1 is around $90, get a 94-95 ecm off ebay for around $50-$100, then whatever the cable costs.
Thread Starter
Joined: Oct 2005
Posts: 2,336
Likes: 67
From: wyoming @ 12000 DA...
Originally Posted by NXSLT1
You can always do an OBD1 conversion if you don't have to do emissions testing. That's the cheapest route if you wanna do it yerself. Tunercat for OBD1 is around $90, get a 94-95 ecm off ebay for around $50-$100, then whatever the cable costs.
The biggest thing with tunercat is that i feel that i won't be able to do anyhting but those few simple things like speedo calibration, speed limiter, and stuff like this fan thing. I don't have ANY experience with anyhitng like it. So it is a completly new experence for me.
and how much total am i looking at for everything i need for the tuner cat on OBDII?? $300? least it says that here http://www.tunercat.com/tnr_desc/Pricing.html
Originally Posted by Dragframe
The biggest thing with tunercat is that i feel that i won't be able to do anyhting but those few simple things like speedo calibration, speed limiter, and stuff like this fan thing. I don't have ANY experience with anyhitng like it. So it is a completly new experence for me.
Originally Posted by Dragframe
and how much total am i looking at for everything i need for the tuner cat on OBDII?? $300? least it says that here http://www.tunercat.com/tnr_desc/Pricing.html
