Heater Problem

1998 LINCOLN MARK VIII
Avatar
JLMASCHMANN
  • MEMBER
  • 1 POST
1998 Mark VIII heater does not get hot - barely warm. We have had Ford dealer look at it and someone at the local Goodyear Store. They said the output is perfect but the car never warms up when you are going down the road. Iowa weather isn't for having a car w/no heater!
Dec 19, 2010 at 7:49 PM
Advertisement
Avatar
MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Is the engine temp normal? or is that also running cooler than normal, your thermostat may be jambed open causing the cool running, feel both heater hoses with the engine hot, are they both hot, and about the same temp?

mark (mhpautos)
Dec 19, 2010 at 11:07 PM
Avatar
BLUECOLLAR
  • MEMBER
  • 86 POSTS
Most likely you have a broken blend air door. The 2nd Gen Mk8's are well known for this problem. Ford came out with one a little beefier than the old design.
Feb 6, 2011 at 10:23 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle