Question about 1987 Mercury Cougar
plug the EGR line and see how it acts. better yet put a ball bearing in that line and reconnect it to the EGR and see if it goes away. definate vacuum issue somewhere. tranny modulator, check every line coming off the firewall manifold. the throttle position sensor might need to be replaced. its one of the only moving sensors under there. on my 89 tempo I could adjust my idle, move that idle screw around so it idles up a bit to get it out of that dead area on the TPS. plug wires after that. those notchbacks are getting extremely rare, and with a V8! put it far far away....
Posted on Mar 20, 2011
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 17, 2013 | 1995 Mercury Cougar
Oct 13, 2010 | 1987 Mercury Cougar
Sep 29, 2010 | 1987 Mercury Cougar
Apr 12, 2010 | 2002 Jeep Liberty
Mar 11, 2009 | 1999 Mercury Cougar
283 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: