Engine shut down while driving
Thread Starter
|
New User
Joined: Aug 2019
Posts: 4
Likes: 0
Engine shut down while driving
Our 2005 Winnebago Sightseer Class A(,It is a Ford F53 6.8 liter V10) has been shutting down while driving, we were able to restart by turning the key in the ignition off and on again (in drive)and it begins to run, but a couple of times it did not. All gauges go to zero when it shuts down. We have changed the fuel filter, fuel pump, crankshaft and camshaft sensors and have had diagnostics done at three places enroute (one ford dealer initially) and we are not getting any problem codes.. I should mention that we had some computer diagnostics done to make the motor more efficient and it started shutting down after that. We have gone up to 650 miles without a shut down and other time it is one after another i.e. 20 miles, 50 miles. It is a fairly dangerous situation so any insight would be appreciated.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 420
From: Long Island USA
Explain how "computer diagnostics" makes the motor more efficient? Was it tuned?
I'm moving this to the V10 forum - lots more people there that are familiar with the V10 and the F-series platform.
I'm moving this to the V10 forum - lots more people there that are familiar with the V10 and the F-series platform.
More Turbo
Joined: Dec 2017
Posts: 587
Likes: 6
If all your gauges are dropping out then it's probably an electrical issue of some sort I'd imagine. Check the alt and battery, also go into more detail about the "computer diagnostics" and who did them.
Disclaimer: I'm not an expert, just a DIYer.
Disclaimer: I'm not an expert, just a DIYer.
Thread Starter
|
New User
Joined: Aug 2019
Posts: 4
Likes: 0
Computer Diagnostics description
Sorry I misspoke it's not computer Diagnostics we initially brought it into a mechanic to have the cruise control fixed as it wasn't working at the same time we had the mechanic connect an SCT computer to change fuel ratios to get us better gas mileage. After that we had the shutdown problem. Then we had the computer set back to factory setting and we did all of the changes mentioned in the original thread fuel filter fuel pump Etc We also to put in a new Servo and a new valve on the master cylinder to try to fix the cruise control and have also had all the sensors checked and electrical connections and they were deemed to be ok.
More Turbo
Joined: Dec 2017
Posts: 587
Likes: 6
Again, I'm not an expert, but if you had fuel problems I think you'd experience other issues, not just an immediate all-stop. Did anyone check out your ignition switch as well? From the sound of it, it sounds more like it's being turned off than something failing mechanically. That's why I thought electrical. Is there any theft prevention on the vehicle?
Fleet Mechanic
Joined: Oct 2004
Posts: 1,394
Likes: 104
From: Southern KS
What is the condition of your battery cables? And not just the terminal ends, but the entire cable assemblies?
Trending Topics
Thread Starter
|
New User
Joined: Aug 2019
Posts: 4
Likes: 0
Engine shut down while driving
Sorry for the delay, the vehicle is still at the mechanics checking everything out. Don't know if anything has been ruled out yet. However we had checked the battery and cables, to my knowledge.
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
Posting Guru
Joined: Nov 2003
Posts: 2,107
Likes: 3
From: California Desert
I had very similar symptoms in my 2003 F-250. It ended up being the previous owner damaged the ECM when he installed a performance chip. A junkyard ECM fixed the problem and I've been trouble free now for over a year. The diagnostic trick I used to determine a bad ECM was keeping a code reader in the truck with me. When the engine shut down, I safely pulled to the side of the road, leaving the ignition on and plugged the reader into the OBDII port. The code reader could not communicate with the ECM. When I turned the ignition off and back on again, the code reader connected and showed no errors and the engine fired and ran fine again. That told me that the ECM had an internal issue that was reset after cycling the ignition.
Thread
Thread Starter
Forum
Replies
Last Post