C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Coolant Problem....ASAP

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Old Jul 8, 2006 | 06:51 PM
  #21  
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Both fans turned on at 228...A/C works just fine......is there suppose to be a single fan to turn on at 218 and then two fans at 228? Only two fans turn on for me at 228.....I thought one fan was suppose to cut on earlier??

Last edited by Achilleus07; Jul 8, 2006 at 06:56 PM.
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Old Jul 8, 2006 | 07:45 PM
  #22  
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Originally Posted by Achilleus07
Both fans turned on at 228...A/C works just fine......is there suppose to be a single fan to turn on at 218 and then two fans at 228? Only two fans turn on for me at 228.....I thought one fan was suppose to cut on earlier??
Main fan is programmed to come on at 227-228 and the auxillary at 9*F warmer than that, or 236-237. Sounds like someone/somehow your aux is coming on with the main fan, not a problem.
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Old Jul 8, 2006 | 10:30 PM
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Originally Posted by SunCr
Never heard of 228/237 for the LT's - I'm pretty sure the specs are 217/226 or thereabouts - certainly someone has a shop manual???.
No need for a shop manual. I have the stock PCM files. The primary fan comes on at 228 and the aux at 237.
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Old Jul 9, 2006 | 03:23 PM
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Hmmm - that looks like the F/B Body Specs - If I remember correctly, Y was 217-215 primary; 226-219 Secondary - someone needs to verify from the Manual so that the problem can be diagnosed correctly.
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Old Jul 9, 2006 | 03:27 PM
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Originally Posted by SunCr
Hmmm - that looks like the F/B Body Specs - If I remember correctly, Y was 217-215 primary; 226-219 Secondary - someone needs to verify from the Manual so that the problem can be diagnosed correctly.
Dude, let it go. I'm right, you're wrong. You're giving false information, and probably making the problem even harder to diagnose.

Do you even have an LTx powered C4?
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Old Jul 9, 2006 | 04:53 PM
  #26  
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Originally Posted by SunCr
Hmmm - that looks like the F/B Body Specs - If I remember correctly, Y was 217-215 primary; 226-219 Secondary - someone needs to verify from the Manual so that the problem can be diagnosed correctly.
I quoted it from my FSM, rest assured stl94lt1 and I are giving the correct info. Want to bet anything on it?
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Old Jul 9, 2006 | 08:43 PM
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If your not the first owner. Almost sounds as if someone has wired it so both fans kick on. Which is OK, that is what I would do with mine. But I have another custom idea for that. My 02.
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Old Jul 9, 2006 | 09:58 PM
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Thanks guys for all the advice and help I appreciate it. Im going to keep a close eye on it and drive it close to home for the next 100+ miles and see how she holds up. I took it out today for awhile and everything looked good. Alot of pep due to the new cam. I appreciate the help.
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