General Tech Help Good at troubleshooting? Have a non specific issue? Discuss general tech topics here...

1989 Cougar runs poorly when cold, bad mileage

  #1  
Old 07-28-2010, 03:48 PM
Junior Member
Thread Starter
Join Date: Jul 2010
Posts: 1
Default 1989 Cougar runs poorly when cold, bad mileage

Hey all:

My dad has an 89 cougar, non-supercharged with only about 50,000 miles.
The problem is the engine runs very rough until it warms up, and then its fine but is only getting about 10MPG.
The colder the outside temperature, the worse it runs, to the point of stalling in below freezing temps.
The weird thing is that the check engine light never comes on.
The next time I have access to the car I'd like to check the EEC-IV fault codes anyway. I know how to do it but where is the diagnostic plug located?

Thanks for any insights
 
  #2  
Old 08-17-2010, 03:28 AM
Junior Member
Join Date: Aug 2010
Posts: 5
Default

Its better to go to a mechanic and get the problem solved soon.he is a better person to fix it.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ekoerner
Cougar
3
08-04-2007 04:05 AM
Bennett
Mystique
0
01-10-2007 07:41 PM
jacob1234
Cougar
2
09-16-2006 11:34 PM
jacob1234
Nitrous, Super Chargers, & Turbos
2
04-23-2006 12:51 AM
jacob1234
New Member Area
0
02-18-2005 05:53 PM


Thread Tools
Search this Thread
Quick Reply: 1989 Cougar runs poorly when cold, bad mileage


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.