Lumina APV Blower, No High

[msvatora]

I'm having the opposite problem many others are having. My A/C blower will work on every speed except for High. Is this something I can solve by replacing the relays?

[LMP]

Yes check the high speed relay and socket
www.avigex.ca/xport/heaterrelay.jpg
extensive use of max speed is detrimental to this relay and socket and motor. The 25 amps that flows at that time melts the contacts ; max speed should be used for short bursts only if max life is wanted.

[TexasGuy]

Is it possible to add a resistor on top to limit current. I am in texas and short bursts are not feasible. I change that relay like each 4 months, with maybe each year I have to redo the harness as well. Tired of it. Need a solution or a new car.

[96tsport]

http://www.automotiveforums.com/vbul...9&postcount=18

First relay went on mine when van was about 3 years old, second one ( and wiring harness) cooked 2 years later. Replaced it with a 30A Bosch style relay, and have never had any more problems, even use high settings for extended periods. I think this relay has large spade style connectors, not the needle thin ones of OE, and was cheaper too. However, it does involve cutting off the old connector and installing a new one to fit the new relay.
Jeff

http://www.automotiveforums.com/vbul...ht=relay+bosch

[TexasGuy]

Is there any part number?

[96tsport]

Something like this on ebay. Should be able to get a generic one at any parts store. They are very common.


http://shop.ebay.ca/?_from=R40&_trks...0A+Bosch+relay

[TexasGuy]

Thanks for the pic, it is worth a 1000 words and only like $5. I am getting one.

[96tsport]

Just wanted to point out the relay pix shows a 5 wire setup whereas the wiring diagram shows a 4 wire setup (in the same ad) ..so there are diff ones out there.

I believe the wiring in the car is a 5 wire setup ..so something to look out for.