How to make my heater hotter?

krazykuda said
Are the foam seals in the hevac unit shot?

If they get old and disintegrate, they will let the air flow around the heater core, instead of through it to get the heat. You may have to remove the duct unit, take it apart, and replace the foam seals all through it.

The A body heaters crank when they work right. I drove them for daily drivers for years.

Hmmm, intriguing...this actually sounds very logical. Where can I get those seals? And you're talking about the ducting under the dash, right?

norshorblufish said
Is it an a/c system?

Make sure your controls are working properly. This is a good idea with or with out a/c.
The doors that direct the air flow may not be opening properly or you my have debris in the duct work.

Nope, no a/c...the doors I've tested and they work as they're supposed to.

ssba said
Cardboard in front of radiator.
I know its tacky but it works.

Haha, you have no idea how many times I've thought about that when it's 10 outside and I've already been driving 15 minutes without heat. ;)