HEATER BLOWER

1992 Cadillac El Dorado

Tiny

rotero61

January, 29, 2010 AT 10:31 PM

Heater problem
1992 Cadillac El Dorado V8 Front Wheel Drive Automatic 133205 miles

Hi, I replaced a heater blower motor on a 4.9L non-northstar engine and my engine cooling fans and heater blower will not go on at all. All fuses and relays are working (checked with tester) but one fuse called Blower feedback is dead. Does anyone know or have an idea what can it be? Thanks.

2 Answers

Tiny

bluelightnin6

January, 29, 2010 AT 11:00 PM

If all relays (there are several on this circuit so be sure you didn't miss one) are OK and wiring is good then fault will most likely be the PCM behind right side of instrument panel.

Tiny

rotero61

January, 30, 2010 AT 5:22 PM

Thank you very much for your help, I noticed that the new Heater blower motor did not bring the gasket and the old one did, so it made my fuse blow and caused a short in the car, now the cooling fans and blower motor are not working. Thanks for the help.

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