HELP

[camo88]

Newbie here and just a couple questions.NO heat while idleing.Getting heat while pushing down on gas peddle.New water pump,thermostat,heater core.Any ideas? Next is headlights on,going down the road and they go off for about 2 sec. and come back on.Replaced headlight switch.when they go off the high beam light on the dash comes on,but no lights at all.Any ideas on this one ?thanks for your time.

[rockcrawlintoy]

air in the system??

[82yota]

I'm guessing air in the system as well. When I first got my diesel into my truck I had the same problem and could hear the gurgling happening a bit but it cleared up and used some coolant out the reservoir and fixed itself. As for the lights could be a short somewhere?

[bowshtr]

Definately sounds like air. Could be HG.

As far as your lights problem, it sounds like it could be your highbeam switch. I had that same problem on my 88 Ranger. Eventually i got tired of chasing wires and just rewired the lights straight to toggle switches. Never had a problem since!

[camo88]

How do I go about getting the air out of it? Thanks.

[bowshtr]

What you need to do is put your heater on hot, turn the truck on and open the rad. cap and let it warm up. You will see bubbles come up and the fluid level will drop. Mainly you want to let it idle until the thermostat opens up and the circualtion begins. Then you will be able to "burb" or purg the system. Sometimes it takes a few tries to get it all out. If it doesnt work the first time do it a few more times. Air can lock itself within the cavities of the engine. One other thing as it heats up you might lose a bit of coolant from overflow. Thats not a big deal, just make sure you top it off again after it cools down. One other thing you might want to check your rad cap. They get worn out over time and wont allow for fluid to enter the overflow or draw fluid from the overflow.