No heat @ idle

[2000sport]

Before I get the "search" comments....

I've been reading up on the no heat issue, and I see alot about the auxiliary pump going bad, causing no heat @ idle.

A few weeks back, I drove out to Detroit to pick up a fender (closest yard I could find with a Silver Frost driver's fender in good shape) and drove through a 6" deep "puddle" as it was the only way out of the industrial park I was in.

I am lowered on Eibach's which I'm sure made it worse, but as soon as I hit the water, all the windows fogged up, and I couldnt get them de-fogged.

after letting it sit for awhile, I got the windows cleared up, but everytime I would hit idle, they would fog up again.

Fast forward to this past weekend...

It was finally cold enough that I had to use the heat... and If I put the A/C on auto,and 80*F, I get nothing but outside temp air @ idle, and then eventually, sustained 2000RPM + driving, I will get heat.

Could this be the electric aux pump?

if so, does anyone happen to know the Motorcraft p/n?

car is a 2000 V6

 

[De-marko]

I would say it is; don't know the P/N though.

When I bought my car a couple years ago I had the same issue. After looking around on this site about the auxilary pump I went and checked. For me it ended up just being the pump was disconnected. Some how the plug had popped off. That was the fix.

 

[joegr]

My understanding is that the V6s don't have the aux coolant pump. Maybe that's gen II V6 only?

Anyway, have you looked to see if you have an aux pump?

 

[2000sport]

It was a hectic weekend... didn't really get a chance to look.

I will lift it up when I get home from work tonight.

I guess that would make this even more fun to diagnose...