5.4 Bi-fuel Rough running engine

Reply Subscribe

Thread Tools

Search this Thread

Dec 21, 2003 | 07:21 PM

ckgentry

Thread Starter

New User

Joined: Dec 2003

Posts: 3

Likes: 0

5.4 Bi-fuel Rough running engine

Does anyone out there have any experience with this engine configuration? I just purchased this thing and need some advise on rough idle and rough running under load.

Thanks

Dec 23, 2003 | 05:35 AM

ckgentry

Thread Starter

New User

Joined: Dec 2003

Posts: 3

Likes: 0

The Truck is a 1999 F 250 LD.

Dec 25, 2003 | 10:28 AM

bosshoss

Elder User

Joined: May 2002

Posts: 778

Likes: 1

Watch for a bad compuvalve, we have had numerus valve failures. Does it do it on both fuel types? Do you know if it is switching from one fuel type to the other. Make sure the truck is off before switching fuel types.

Dec 27, 2003 | 04:40 AM

ckgentry

Thread Starter

New User

Joined: Dec 2003

Posts: 3

Likes: 0

As it turns out it was just 2 defective coils. Cyl. 1 & 6. those parts and a new set of plugs have it running right. Thanks again for help.

I'll keep an eye out for the compuvalve.

Are there any shop manuals available for the Bi-fuel trucks?

Dec 28, 2003 | 11:03 AM

bosshoss

Elder User

Joined: May 2002

Posts: 778

Likes: 1

Our shop is linked to an online service, so we dont have the manuals. I would prefer the books, over the service we get from these folks. I hope to go to a FORD School on this soon. Thanks for letting us know what was found