1989 ford f-150 wont stay running?


Asked by Sep 14, 2016 at 12:23 PM about the 1989 Ford F-150

Question type: Maintenance & Repair

My truck is running and idling REALLY rough. Every time I start the engine,
it will turn over but then it reves into the high 2000's for RPS's and then
drops to nothing and dies. If I want to keep it running, then I have to give it
gas to imitate an idle. And I have to slip it into drive or reverse immidatly,
otherwise it will die. I just want to know how to start trouble shooting the
problem. Can anyone help me out?

5 Answers


Check fuel pressure. If fuel is ok, check crankshaft positioning and throttle positioning sensor. Other things that can cause that particular problem is evaporative solenoid stuck open

1 out of 1 people think this is helpful.
Up Front

Looking into idle air control valve problem and check for vacuum leaks

2 out of 2 people think this is helpful.

Agree with Up,air leak or idle control issue.

Jesse Woolard

Check the hose going to the MAF adaptor for holes, oxygen sensors, Idle air control valve, take a can of starter fluid while it is running and spray around the throttle body, all hoses and vacuum lines. if it revs up, you found the vacuum leak.


Thanks for the ideas guys! I will make a check list and just start going through stuff this weekend.

Your Answer

Add photo

Related Questions


Looking for a Used F-150 in your area?

CarGurus has 217,198 nationwide F-150 listings starting at $1,000.


Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
Reputation 6,000
#2 dandyoun
Reputation 3,880
#3 tennisshoes
Reputation 2,290
View All

Related Models For Sale

Used GMC Sierra 1500"
1,054 Great Deals out of 56,538 listings starting at $2,300
Used Ford F-250"
614 listings starting at $3,995
Used Ford Mustang"
752 Great Deals out of 41,500 listings starting at $900
Used Ford Ranger"
272 Great Deals out of 7,818 listings starting at $988

Used Cars For Sale

2017 Ford F-150 For Sale
6,441 listings starting at $17,015
2016 Ford F-150 For Sale
152 Great Deals out of 138,649 listings starting at $16,985
2015 Ford F-150 For Sale
247 Great Deals out of 9,008 listings starting at $17,958
2014 Ford F-150 For Sale
506 Great Deals out of 10,965 listings starting at $10,450
2013 Ford F-150 For Sale
716 Great Deals out of 14,780 listings starting at $7,727