hard to start???
Thread Starter
|
Junior User
Joined: Jan 2002
Posts: 63
Likes: 0
From: clementsport canada
hard to start???
hey guys, i was wondering if one of you guys could help me out with a little starting problem?...i have a 1989 f-150 2 wheel drive with a fuel injected 300 6 cyl engine...the problem is when i go to start it whens it"s cold i have to keep cranking it over and over before it will star and run smoothly...i"ve replaced all the injectors and the oxygen sensor...anybody got a clue whats wrong??....paul..
Senior User
Joined: Feb 2001
Posts: 119
Likes: 0
From: Dryden Canada
hard to start???
Well, I had a starting problem with my 84 that had me scared to take the truck anywhere for fear it would never start again. Every once in a while it just would NOT start. I mean not start to the point of killing the battery trying. The mechanic would come to my driveway, look at it sideways without even touching it, and it would run. 
Turned out the fuel pump was dying and every once in a while it just decided to quit ... and then work perfectly well for a while ... and die again. Never had another problem with it starting short of occasional flooding after that ... until I hit a flippin' deer with the thing. 
Might be something to look into.
:-X11
Turned out the fuel pump was dying and every once in a while it just decided to quit ... and then work perfectly well for a while ... and die again. Never had another problem with it starting short of occasional flooding after that ... until I hit a flippin' deer with the thing. Might be something to look into.
:-X11
Postmaster
Joined: Jul 1999
Posts: 3,172
Likes: 4
hard to start???
When its cold , Get a reading on the fuel psi , specifically when you turn the key to run , If the psi raises slowly & drops off quickly First replace the fuel filter if thats not been done in the last 30K miles . If replacing the fuel filter doesnt change things & the fuel pump psi builds slowly & drops off quickly ...Id suspect the pump , Ive been thru 2 in 180K miles for the symptoms you describe . Normally 2 cranks & the engine lights up . How many miles on your truck ?
Freshman User
Joined: Mar 2002
Posts: 26
Likes: 0
hard to start???
I had a cold starting problem with my 1987 4.9L. I did a complete tuneup, with plugs, wires, distributor cap, rotor, coil and I still had a cold start problem. The last thing I did that fixed the problem was to change the intake by-pass valve (about $75. from the Ford dealer) now it fires right off every time no matter how cold.
Good Luck
David Kihn
Good Luck
David Kihn
Trending Topics
Cargo Master
Joined: May 2001
Posts: 3,208
Likes: 13
hard to start???
If the fuel pressure checks out then I would go to the idle air by-pass valve if it don't work it will not idle right The way the idle is controlled on these efi motors is by how much air is allowed to by-pass the throttle plates. You can take them off and clean them.
I take the solenoid off and then give them a good bath in carb cleaner.
I take the solenoid off and then give them a good bath in carb cleaner.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
