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740 1990 heater blower motor 700 1990

The heater blower motor on my non-turbo 1990 740 is making that dreadful squeling noise.

The FAQ states that pre-1990 740 motors can be replaced with a GM part (NAPA 455-1076). Post 1990 cars cannot. MY 740 is a 1990. Does the pre-1990 or post-1990 rule apply?








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740 1990 heater blower motor 700 1990

Greetings:

The entry in the FAQ about the '90 up blower motor was originally from me:

Post 1990 740/940 Cars: A Factory Air #35339 that lists for $49.88 on the PartsAmerica website will fit with a different wiring pigtail made using an adaptor pigtail from a bit of heavy automotive wire and some female and male crimp on spade connectors. This will allow you to connect the original harness plug to the motor without hacking anything. Make sure the polarity is correct on installation so it does not run backwards. This is the same blower as used in any '91-'96 rear wheel drive full size General Motors car. Note that post-1990 cars use a different plastic mounting plate.

Since you have a '90 I assume that you have the same motor that my '91 has - the late style. I believe you can tell by looking at the elecrtical connector going to the motor. The early style is 1-wire while the later style is 2-wire. From what I recall, NAPA was more expensive for a '91 - '96 Chevy Caprice blower motor (the substitute application that I researched and used) than PartsAmerica was. I would shop around before going to NAPA.

Good luck!

Andrew S.

'91 744 with a '91 - '96 Chevy Caprice replacement blower motor







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