1986 Ford Bronco, 5L EFI

Asked by Nov 15, 2012 at 10:51 PM about the 1986 Ford Bronco XLT 4WD

Question type: Maintenance & Repair

It periodically started dieing when it got up to operating temp. just driving around town. I would let it cool down (about 30 min.) then it would start and run again. I replaced the ing. mod. and it seems to run OK, except it will sometimes stall out, like it is not getting gas. You never know when it will do it.
How can I check the fuel pump in the frame rail? Could it be the cat?

4 Answers

850

check your computer. when a computer heats up it will shut off try putting ice packs on both sides when it cuts out wait a few minutes and try to start. if it's heating up doing this the truck will start.

Idle air control, if they stick the engine will die ford had many problems with the early EFI ones..

coolant temp sensor can cause this as well.. these trucks have two. one for computer and one for gauge. find one for the computer and unplug it when its hot if it fires back up its your culprit. this sensor can also cause engine to run rough as well as many other issues. ( mechanic by trade )

140

Most likely is the idle air control valve. Take it off and clean it with throttle body cleaner. Make sure to hold it so cleaning fluid doesn't get in electric control side!

1 of 1 people found this helpful.

Your Answer

Bronco

Looking for a Used Bronco in your area?

CarGurus has 177 nationwide Bronco listings and the tools to find you a great deal.

ZIP:

Ford Bronco Experts

  • #1
    tennisshoes
    Reputation
    430
  • #2
    Js08016
    Reputation
    170
  • #2
    Clayton Cameron
    Reputation
    170
View All

Related Models For Sale

Used Ford F-150
2,131 Great Deals out of 181,877 listings starting at $1,000
Used Ford Mustang
743 Great Deals out of 42,277 listings starting at $1,300
Used Jeep Wrangler
265 Great Deals out of 15,738 listings starting at $2,997
Used Chevrolet Blazer
3 Great Deals out of 1,154 listings starting at $950
Used Ford F-250
479 listings starting at $1,295
Used Ford Ranger
168 Great Deals out of 5,554 listings starting at $1,000
Used Toyota 4Runner
248 Great Deals out of 21,413 listings starting at $2,300
Used Chevrolet Camaro
398 Great Deals out of 31,729 listings starting at $2,395
Used Jeep Cherokee
374 Great Deals out of 40,804 listings starting at $1,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.