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

A new one on me, blower problem.

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Old Jul 23, 2013 | 04:44 PM
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Default A new one on me, blower problem.

On an 87 with Electronic climate control. The blower does not come on. All the buttons on the C68 controller function, but no blower UNLESS you have the engine off and key turned to accessory, then you can control it's speed, and on off. Once you start the car, nothing. Any ideas? Thanks.

Last edited by Y-ME; Jul 23, 2013 at 04:52 PM.
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Old Jul 24, 2013 | 03:55 AM
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gonna keep this answer short and simple.....

best of luck
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Old Jul 24, 2013 | 09:27 PM
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Originally Posted by ladystoy69
gonna keep this answer short and simple.....

best of luck
I have the manual, can't find where it wold troubleshoot this sort of problem.
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Old Jul 25, 2013 | 09:42 PM
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My 1st guess would be the ecc itself. Blower obviously works, so for something this quirky I would guess its the control unit itself.

Scott
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Old Jul 25, 2013 | 11:13 PM
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Run the diagnostics on the HVAC control head and see what you get:

http://forums.corvetteforum.com/c4-t...stic-mode.html

When my fan stopped working it was caused by a bad connection on the blower control module connector.
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Old Jul 27, 2013 | 11:00 PM
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Found some, I needed one too.

http://www.ebay.com/itm/New-Genuine-...-/200860104260
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