TD New Guy
Join Date: Mar 2013
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1989 Plymouth Voyager 2.5 turbo No Heat
I have a 1989 Voyager 2.5 Turbo, and for the last few months the van on some days has heat and other doesn't. I can be driving and have heat and the all of a sudden it goes lukewarm and cold.
I have flushed the core forward and back flush changed the water pump and the rad cap was bad and changed that as well. I removed the switch near the heater hoses on the firewall thinking the switch wasn't working, thats switch is for the a/c. I even checked for air pockets. I hoisted the front end of the van up about 3 to 4 feet removed the rad cap and got air pockets out. And when the air goes lukewarm I've checked the blend door in the cab by moving it back and forth and it works. Goes from cold to back to heat which is lukewarm. Now when I lose heat when I touch the gas I get my heat back and its not like I have to hammer the gas just raise the rpm like 100 to 200 rpm and I have heat. The system doesn't seem to be leaking I have checked a few times and each time the system is full. P.S this problem is very intermittent. I could have heat today and then no heat tomorrow.
Any help would be appreciated thanks