Bad IDM?
Thread Starter
|
Senior User
Joined: Mar 2009
Posts: 151
Likes: 0
From: Diamond, Ohio
Bad IDM?
Had to repalce the starter last night, it was cranking real slow, batteries were good, unhooked batt's, put new starter on, while i was under the truck finishing install, my brother was up top and was starting to hook batteries up, i did not have the starter all the way in yet when he hooked up the first batt, the starter engaged and arced on the bell housing. not good right. so we tried one more time and the same thing as soon as the cables on the battery were hooked up the starter would engage or arc on the bell housing, went down and got a new stater and hooked it up with no problems...
or so i thought...
New starter in, went to start the truck, would just crank, tried again , would just crank, tried a third time and the truck started .....
shut it off and tried a hundred more times, no start...
Put it on the scanner- IDM fault...
Should i replace the IDM now, how did the starter fry the idm?????
Are there fuel bowl heaters on these superdutys, i know on my OBS truck it would not start one day and it was the fuel bowl heater shorted out...
or so i thought...
New starter in, went to start the truck, would just crank, tried again , would just crank, tried a third time and the truck started .....
shut it off and tried a hundred more times, no start...
Put it on the scanner- IDM fault...
Should i replace the IDM now, how did the starter fry the idm?????
Are there fuel bowl heaters on these superdutys, i know on my OBS truck it would not start one day and it was the fuel bowl heater shorted out...
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Check your fuses and relays and clear the code. My guess is your IDM fault tripped from too much cranking. Does your WTS light work normal? Can you hear the fuel pump come on with the key? Any smoke out the tailpipe while cranking?
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
Have you tried to clear the code and see if any come back after cranking it over a couple of times? Can you do a buzz test. This would check the idm circuitry. Also, make sure your oil is full and the hpop resevoir is full. Are you getting power to the GPR?
Trending Topics
Thread Starter
|
Senior User
Joined: Mar 2009
Posts: 151
Likes: 0
From: Diamond, Ohio
Yes gpr was working, oil was full, put idm back in to reset codes, reset codes still no start, put the battery charger on cause batt's were dy'en, still no start.... Put 2 new battery's in, cause we had them in the shop, and bammm, truck started right up with old idm....??????????
So i then put my new DP Tuner in and a bad day turned into a reaLLY good day fast.. WOW that DP makes that thing run like a champ.... sweet, thanks clay...
So i then put my new DP Tuner in and a bad day turned into a reaLLY good day fast.. WOW that DP makes that thing run like a champ.... sweet, thanks clay...
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Pitcrw6
1973 - 1979 F-100 & Larger F-Series Trucks
6
Aug 26, 2012 12:59 PM
Ebrazil
1994.5 - 1997 7.3L Power Stroke Diesel
39
Aug 12, 2011 11:26 PM
Ebrazil
1987 - 1996 F150 & Larger F-Series Trucks
2
Aug 9, 2011 07:09 PM
buckettruck
1987 - 1996 F150 & Larger F-Series Trucks
7
May 17, 2009 04:28 PM
