I just bought a 96 extended cab 4x4 duelly with a 6.5 in it,and when I test drove the truck the blower motor worked fine.After I bought the truck and left,the blower didn`t come on until I was 2 miles down the road,and then it worked fine.Now every time I start the truck the blower doesn`t come on until it`s driven a bit.Any suggestions would be great,as it`s cold in Kentucky.Thanks

I just bought a 96 extended cab 4x4 duelly with a 6.5 in it,and when I test drove the truck the blower motor worked fine.After I bought the truck and left,the blower didn`t come on until I was 2 miles down the road,and then it worked fine.Now every time I start the truck the blower doesn`t come on until it`s driven a bit.Any suggestions would be great,as it`s cold in Kentucky.Thanks


Welcome Superdave!

It's ccold here also.

Have you simply tried wiggling the heater knob? Maybe a bad connection issue.
If not, the resistor may need replacing.

Do a search " heater connection" or something to that effect, was a post not that long ago about that very same problem

The post nickg is refering to is http://dieselplace.com/forum/showthread.php?t=187331&highlight=heater&page=3
look through the post pay attention to post 26 (another link).

Also don't forget to fill in your signature with year model and mods:
http://dieselplace.com/forum/profile.php?do=editsignature

Try wacking the blower moter. I had one that would do that sometimes. Smacking it with a snow brush usuall got it to turn on until I bought a new blower moter.

Bill

I had the same issue. I first replaced the relay,(borrowed one from another truck). That made no difference. I replaced the blower motor (it was screeching anyway), then put a used control panel in it. That did the trick.

Thanks everyone who replied,but so far the heater has been working like it should,but if starts doing it again,I`ll know where to start looking.Thanks