Engine dies when taking off from idle!!!!
Thread Starter
|
New User
Joined: Nov 2012
Posts: 4
Likes: 0
Engine dies when taking off from idle!!!!
Love my truck but DANG. Alright I have a 2003 F250 7.3 w/250,000 on it. I have replaced the CPS due to stalling, the IPR due to stalling, HPOP rings, fuel gromets, the glow plug relay due to smoking and have done major cleaning and removing bad corrosion on a lot of the connections under the hood within the past 3 months that I have had the truck. What happens now is when I go to take off from a stop the truck looses RPM's and dies. The RPMs start at 750 (idle) and when I press the gas to move it revs to about 1100 and then dies. It starts right back up and if I give it excess gas (rpms)it will work. I noticed also that it does it a lot more if I am on an incline and try to go from stopped. Let me know what y'all think. I am thinking fuel pump but it has no issues while driving!
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
750 rpm's sounds a little high for idle after it's warmed up. Does this only happen when cold, or after it's warmed up too? When it dies, how does it stall? Spit and sputter? Lug down? Shut off like someone turned the key off? Kind of sounds like your transmission is lugging down the engine.
It's not your fuel pump.
It's not your fuel pump.
Postmaster
Joined: Apr 2012
Posts: 2,613
Likes: 8
From: North Georgia
spitballing here but...
how much fuel is in your tank...?
if it is under 1/4 i would suspect a problem with your fuel pickup in the tank. this is a common known issue. cure is the hutch/harpoon mods.
how much fuel is in your tank...?
if it is under 1/4 i would suspect a problem with your fuel pickup in the tank. this is a common known issue. cure is the hutch/harpoon mods.
Thread Starter
|
New User
Joined: Nov 2012
Posts: 4
Likes: 0
Doesn't do it in reverse. Guess I can drive backwards 
. Only dies when I am sitting at a light (or in rush hour traffic) and and go to accelerate from idle and sitting still. I just drove the truck up the driveway and it acts like it isn't engaging correctly. I accelerate and then there is a slight jerk and the RPMs increase. No lights on the dash on. No ses light.
. Only dies when I am sitting at a light (or in rush hour traffic) and and go to accelerate from idle and sitting still. I just drove the truck up the driveway and it acts like it isn't engaging correctly. I accelerate and then there is a slight jerk and the RPMs increase. No lights on the dash on. No ses light.
Trending Topics
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
Have you inspected the engine harness and wiggled stuff while the engine is idling to see if you can get it to stall? Inspect all the relays for corrosion on the terminals, look for signs of rodents especially around the PCM and IDM (modules). Your issue sounds like an electrical fault of some kind...
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Laughing Gas
Joined: Nov 2010
Posts: 1,193
Likes: 2
From: D.C. but heart's in TEXAS
Sounds exactly like the symptoms my truck had when the IPR nut became loose (actually, it fell off into the valley). Check your IPR nut and make sure it's on tight enough. This happened 2 months after I installed a new IPR. Proper torque is 53 INCH pounds, and you can use blue Loctite on it.
Posting Guru
Joined: Aug 2010
Posts: 1,002
Likes: 1
Check the connection on the IPR cable. I had lost the nut and spacer in the valley, I don't know how long it had been off but my truck was doing all kinds of weird stuff including dieing when you back up, I tightened it back down and a day later it died again. The connector on mine is buggered, I have another to replace it, but I wonder if the coil is damaged from vibrating around loose on the Ipr shaft.
Thread
Thread Starter
Forum
Replies
Last Post
nerdpcr
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
2
Mar 23, 2014 08:27 PM
elvia
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
4
Sep 17, 2006 07:18 AM