Heater motor quit

[mrcash]

How can i get to the heater motor its covered with to much plastic i just want to turn it a little to see if the armatur has a bad spot because sometimes it works for awhile than not.

Wayne

[ericn1300]

What year? My 92 and all others I've seen have the blower motor under the hood, on the firewall passenger side. pretty easy to get to, you might have to move the coolant resevoir to pull the motor.

when mine stopped, i'd pop the hood and rap it with a screwdriver handle and it was good to go until i stopped again. worked fine for me but my wife finaly made me get a new one. i found rebuilts on the internet for under $20

[mrcash]

Originally Posted by ericn1300

What year? My 92 and all others I've seen have the blower motor under the hood, on the firewall passenger side. pretty easy to get to, you might have to move the coolant resevoir to pull the motor.

when mine stopped, i'd pop the hood and rap it with a screwdriver handle and it was good to go until i stopped again. worked fine for me but my wife finaly made me get a new one. i found rebuilts on the internet for under $20

97 bravada since i posted this message i've took the switch out and am checking that right now thats where the junk yard thought the problem might be, thanks for all the help

Wayne

[ericn1300]

you dont need to pull the switch to test it. just pull the wire off the motor and check for voltage with the switch and the key on. takes about 2 mins. if you have voltage, then the motor is bad, if you don't have voltage then check the fuse and switch.

[mrcash]

Originally Posted by ericn1300

you dont need to pull the switch to test it. just pull the wire off the motor and check for voltage with the switch and the key on. takes about 2 mins. if you have voltage, then the motor is bad, if you don't have voltage then check the fuse and switch.

Great advice thanks little late for me since i already had mine out ( not your fault ) but i'm still going to try that i will let you know how i come out on it.

[ericn1300]

the '97 is not quite as easy to get to as the older ones. check out Chris' post "Gm is as bad as the oil companies".

[mrcash]

Originally Posted by ericn1300

you dont need to pull the switch to test it. just pull the wire off the motor and check for voltage with the switch and the key on. takes about 2 mins. if you have voltage, then the motor is bad, if you don't have voltage then check the fuse and switch.

Great advice i check for voltage and none also realized the heater gages has to be on somewhere at least not on the off to show power, in the long run guess what i found this guy at the junk yard said first check the voltage where theres 4 prongs switch and i had power there but still not at the motor switch so i talked to a parts man he said sounds like the relay switch so i check and la la that was it on wire was burnt so i wiggled my screwdriver in there and filed with a finger nail file on the prong and pluged it in and WOW it worked, now i kinda wonder why it looked burnt must have got hot and didn't blow a fuse hummmm oh well next time thats where i will be checking.

[Chris Stewart]

Now that's great news! I'm glad you found the problem and thanks for posting it here...I'll look there first when mine starts giving trouble.