Ford 1986 6.9L Glow Plug Problems
Thread Starter
|
New User
Joined: Oct 2003
Posts: 1
Likes: 0
Ford 1986 6.9L Glow Plug Problems
My truck was running great! Then yesterday the glow plug wait light does not come on at all. I am considering changing out the relay, but seems weird that all the sudden no light or glow plug operation. I have it plugged in now to see if it will start with the plugged in heater. Anyone else have the same problem?
New User
Joined: Apr 2003
Posts: 8
Likes: 0
I had a the same problem. I replaced the relay and all the glow plugs and it worked like a champ. That is until I drove it for a distances. I noticed the glow plug light was cycling while I was driving down the highway. Now, I am back to the same problem. Just a bit of advice, it get expensive replacing glow plugs and relays for each start. I am next going to check the temperature sensor.
Elder User
Joined: Mar 2002
Posts: 529
Likes: 0
From: France
GP's & stuff
Just my two cents but a manual gp switch took care of all my problems !! Cant beat it, bypass everything and YOU control everything, flip the switch, count to five and fire it up, works everytime even when cold outside.
Magic
Magic
Elder User
Joined: Mar 2002
Posts: 529
Likes: 0
From: France
Hi,
follow this link, has a good diagram, real simple !
http://www.members.shaw.ca/k2pilot/G...%20diagram.jpg
follow this link, has a good diagram, real simple !
http://www.members.shaw.ca/k2pilot/G...%20diagram.jpg
Elder User
Joined: Mar 2002
Posts: 529
Likes: 0
From: France
I usually hold the trigger only 5 seconds, if you hold it in too long you can fry the glow plugs. If you lend your truck make sure the other person understands this real good otherwise you may be into having broken tips in the cylinders!!!!!
Magic
Magic
Junior User
Joined: Sep 2003
Posts: 80
Likes: 0
From: Portland
Trending Topics
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
Brrumby and wulfcity,
Sounds like the controller in the back of the engine is your problem, not the relay. The old controller may be causing the relay and plugs to be burnt out before their time.
Sounds like the controller in the back of the engine is your problem, not the relay. The old controller may be causing the relay and plugs to be burnt out before their time.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
I give mine about 5 seconds at 30 degrees, 10 seconds at 0 or below. With a timer you are locked in to a same time period every time.
I figure if I can save 5 seconds every time I start the truck when it is around 30 then I can get an extra year out of the plugs easy.
I figure if I can save 5 seconds every time I start the truck when it is around 30 then I can get an extra year out of the plugs easy.
Senior User
Joined: Nov 2003
Posts: 325
Likes: 0
From: Hallettsville, Texas
By all means, use the momentary switch. If you don`t, sooner or later you will accidentally bump the toggle switch to the on position and burn up your glow plugsand possibly damage your heads and/or pistons if you try to start it. Manually operated glow plug system with the momentary switch is the only way to go. I have been operating mine manually for years and have not had to replace any glow plugs yet. Knock on wood!