Question about 1989 Chevrolet Corvette

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Blower motor runs all the time even with key off

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Sounds like a bad relay. For 89 that should be under the hood i think. Go to advance/auto zone as it should just use a regular relay. Look in the haynes repair manual while there for where it is located.

If not a relay then could be a bad switch (the dash unit)/

Posted on Mar 27, 2009

6 Suggested Answers

emissionwiz
  • 66433 Answers

SOURCE: Blower motor stays on high, even with key out

the blower motor speed control module is defective, replace it.

Posted on Dec 24, 2008

  • 14036 Answers

SOURCE: 2006 monti carlo blower motor stuck on high, even

what blower you talking about.if ac blower your blower relay stuck close. your monte carlo has a super charger blower also.

Posted on Jul 05, 2009

  • 47 Answers

SOURCE: 2003 Chevy truck blower motor runs even with key

sonds like a faulty resistor

Posted on Aug 02, 2009

  • 7353 Answers

SOURCE: My heater's blower motor runs even when the car is OFF

You MAY have an "Ignition Switch " thats bad.

Posted on Nov 16, 2009

wracefans24
  • 1985 Answers

SOURCE: blower motor runs even when vehicle is turned off

you need to check the blower motor resistor.

Posted on Jan 21, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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My blower motor quit working changed blower and now it runs all the time even with key off worked fine before blower went out the fuse had also blown what could cause it to run all the time now


Most would say it is the Blower Motor Resistor or a relay..And possibly the dash heater control knob..However it is running all the time even with key off..This means it is getting power all the time from somewhere..It sounds as if wiring is crossed..Did you have to change wiring plug in connectors..?..

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Blower control


Check connector at the blower motor. The ground burns up in the connector. Also try this turn the blower motor on speed 3 then smack the bottom of the blower motor. If it starts blowing the brushes in the motor are worn out. Replace the blower motor.

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Vent fan running all the time even with key out of switch


You have a bad blower motor relay, when the relay goes bad. It can freeze in the on position keeping the contact closed to run your blower motor. Inspect the blower motor relay and wire harness for any short due to burnt wire, this is a common issue with that year of Silverado's
Thank you for using fixya and good luck.

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I REPLACED MY BLOWER MOTOR, BUT I HAVE TOUBLE WITH THE 30amp #30 FUSE MAKING THE FAN RUN ALL THE TIME, IS IT THE RESISTOR OR SOMETHING ELSE ???


Yes the problem is the blower motor resistor.This will make the fan run even if the key is off at times.Make sure and check the connector when replacing the resistor,sometimes they get hot and will melt the ends.Hope this helps.Good luck.

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Blower motor continues to run when vehicle is off


Your problem is the Relay which is encased inside the Heater/AC Resistor Module. This is a very common problem with GMC and Chevy Trucks. The Relay's return spring fails and the relay is held closed by gravity. The only fix is to replace the Resistor Module. I have a 2004 Silverado and have replaced the Module 3 times and the Blower Motor twice. The Orange wire feeding the Module is always Hot (12V) and feeds the Relay Contact for Highest Blower Speed. Hence the Blower runs all the time even with the Key off and removed.

Oct 02, 2009 | 2003 GMC Envoy Xl

2 Answers

Blower motor stays on high, even with key out


the blower motor speed control module is defective, replace it.

Dec 24, 2008 | 2002 Chevrolet Silverado

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