Help! 7.5L keeps stalling!
Thread Starter
|
New User
Joined: Dec 2010
Posts: 6
Likes: 0
Help! 7.5L keeps stalling!
hi there, can anyone help me? my 97' f350 has just developed a stalling issue...... it starts fine in the mourning, idles great, but in my 10 min drive to work it dies after about 9 min and won't restart till it cools off! but yet if i leave it in the driveway and let it idle it will run for hours!!!! it just rolled over 100k, always been matained reg. only with true motorcraft parts, fresh tune up 5k ago.... i thought it was the TFI module so i replaced it but no luck....any ideas??? thank you guys in advance!
Lead Driver
Joined: Aug 2006
Posts: 5,670
Likes: 12
From: Sand Lake, MI
Myself I just pull the coil wire from the cap, lay it on its side on a accessory bracket and have someone crank the motor for me.
Good strong spark will have no trouble jumping clear of the rubber boot to ground.
In a pinch or if in doubt, think its weak spark, put a screw driver in the wire end, lay its shaft near a ground.
You guys and your fancy stuff all the time......must be rough.....(hangs head in shame)...
Naww....guess I'm just too cheap!
Good strong spark will have no trouble jumping clear of the rubber boot to ground.
In a pinch or if in doubt, think its weak spark, put a screw driver in the wire end, lay its shaft near a ground.
You guys and your fancy stuff all the time......must be rough.....(hangs head in shame)...
Naww....guess I'm just too cheap!
Trending Topics
Fleet Owner
Joined: Oct 2005
Posts: 20,784
Likes: 1,751
From: Kentucky
Myself I just pull the coil wire from the cap, lay it on its side on a accessory bracket and have someone crank the motor for me.
Good strong spark will have no trouble jumping clear of the rubber boot to ground.
In a pinch or if in doubt, think its weak spark, put a screw driver in the wire end, lay its shaft near a ground.
You guys and your fancy stuff all the time......must be rough.....(hangs head in shame)...
Naww....guess I'm just too cheap!
Good strong spark will have no trouble jumping clear of the rubber boot to ground.
In a pinch or if in doubt, think its weak spark, put a screw driver in the wire end, lay its shaft near a ground.
You guys and your fancy stuff all the time......must be rough.....(hangs head in shame)...
Naww....guess I'm just too cheap!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
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
Fleet Owner
Joined: Oct 2005
Posts: 20,784
Likes: 1,751
From: Kentucky
Check the connection to the coil. More than once someone has replaced a bunch of parts then found out it was a bad connection to the coil. Does the truck have a tach? If so, does it show any RPM reading when cranking? It should. If not it is most likely a stator (PIP) problem. A very common problem on these trucks.
I have a meter that also reads frequency. I have used it in a pinch to measure if there was any signal getting to the coil.
I have a meter that also reads frequency. I have used it in a pinch to measure if there was any signal getting to the coil.
Thread Starter
|
New User
Joined: Dec 2010
Posts: 6
Likes: 0
ok............i don't know what to think about this......i was down at the local auto parts store yesterday discussing my issues with some of the guys there and this little old man walked up and said he had been listening to our conversation.....he told me he knew what the problem was, he said i needed a new rotor in my dist.! I informed him that i had just recently replaced it already and he said to replace it again that it was bad......i didnt really belive him, with the symptoms and all, it just didnt sound like a rotor, but i bought one anyways, trucks been running without a hitch ever sense!?!?!?! luck? years of knowledge? good guess? i am confused as to why that fixed the problem, and/or am i just getting lucky and its just not dying right now!?!?! if that was the problem then i have just gained a lot of respect for little old men in parts stores that's for sure!!! any thoughts from you guys? 
Fleet Owner
Joined: Oct 2005
Posts: 20,784
Likes: 1,751
From: Kentucky
Stranger things have happened. A simple rotor fixing the problem is suspect. But for the time being, see if it fixes the problem. Maybe the rotor tab was not making good contact after a period of time?
Thread
Thread Starter
Forum
Replies
Last Post
bboyes21
1997 - 2006 Expedition & Navigator
9
Sep 11, 2016 11:40 PM
Codycamper
1987 - 1996 F150 & Larger F-Series Trucks
6
Oct 16, 2015 02:22 AM
