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ricos20002
Member


Name : Robert
Age : 36
Location : Copperas Cove, Texas
Joined : 2008-10-22
Post Count : 84
Merit : 1

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PostSubject: Re: no heat?   no heat? - Page 2 EmptySun Nov 29, 2009 3:26 pm

Ok its about to get cold again and I don't want to go though another winter with out heat. So today I tore apart the car, I pulled the heater core out, I watched all the doors move back and forth, and watched the defrost motor too. Also thought the core might be plugged up, so I flushed it out with the hose. I put everything back together. I let the car warm up, turn the heat on, and I got heat!!! About 3 hours latter I went to the store, and now its not working, What could the problem be????
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Rickw
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Name : Rick
Location : Lancaster, MA
Joined : 2008-09-13
Post Count : 6232
Merit : 112

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PostSubject: Re: no heat?   no heat? - Page 2 EmptySun Nov 29, 2009 4:03 pm

What did you use for your power supply when checking all the actuators. The car battery, or another 12volt source.?
My first inclination would be to test all the blend door actuators, one at a time, and see if they are rotating correctly. (The actuators operate on 5 volts, I believe, Will have to check manual)
Sometimes trying to operate them with the cars system at anything less than 12v can cause a problem and also if one or more of them aren't indexed properly it would cause a problem, such as the one discussed.
There is a write up on here that someone recently made with pic's that show the internals of these actuators and how to index them properly.

Also, what temp is your coolant running at and what temp thermostat do you have installed. Have you ruled out the radiator being partially clogged and your thermostat operating properly.???


Last edited by Rickw on Sun Nov 29, 2009 4:41 pm; edited 1 time in total
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ricos20002
Member


Name : Robert
Age : 36
Location : Copperas Cove, Texas
Joined : 2008-10-22
Post Count : 84
Merit : 1

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PostSubject: Re: no heat?   no heat? - Page 2 EmptySun Nov 29, 2009 4:11 pm

No I used the HVAC controls to run though the temp and all the modes, I'm running a 180* stat, and I had the radiator reamed out about a year ago. I'm thinking its ether water pump prop, or theres an air pocket that I cant get out, I've tried burping it several times.
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Rickw
Guru


Name : Rick
Location : Lancaster, MA
Joined : 2008-09-13
Post Count : 6232
Merit : 112

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PostSubject: Re: no heat?   no heat? - Page 2 EmptySun Nov 29, 2009 4:42 pm

Sorry, I do not have the wiring diagram for the 1995
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