Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

backfiring

Thread Tools
 
Search this Thread
 
Old Feb 3, 2017 | 03:09 PM
  #1  
VA86ft's Avatar
VA86ft
Thread Starter
|
Trailering
Joined: Dec 2016
Posts: 22
Likes: 0
backfiring

I've noticed over the past week if I'm going downhill or at a higher rate of speed (50-65mph) and let off the throttle it'll backfire..and sometimes fairly regularly if I repeat that process. Is this the wrong fuel/air mixture..leak/hole in exhaust somewhere..carbon build up on spark plugs?

'95 F350 5.8
 
Reply
Old Feb 3, 2017 | 05:26 PM
  #2  
rla2005's Avatar
rla2005
Fleet Owner
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Oct 2005
Posts: 20,780
Likes: 1,746
From: Kentucky
Most likely an exhaust leak in my experience.
 
Reply
Old Feb 7, 2017 | 06:53 AM
  #3  
VA86ft's Avatar
VA86ft
Thread Starter
|
Trailering
Joined: Dec 2016
Posts: 22
Likes: 0
Could it be bad or leaking heads? If so, is that a lengthy & expensive process for a mechanic to replace? Best heads for 5.8L? factory?
 
Reply
Old Feb 7, 2017 | 08:50 AM
  #4  
rla2005's Avatar
rla2005
Fleet Owner
20 Year Member
Community Builder
Liked
Community Favorite
Joined: Oct 2005
Posts: 20,780
Likes: 1,746
From: Kentucky
Originally Posted by VA86ft
Could it be bad or leaking heads?
Not very likely.



Originally Posted by VA86ft
If so, is that a lengthy & expensive process for a mechanic to replace? Best heads for 5.8L? factory?
Yes it would be expensive, but as previously stated not likely to be the root cause. Start with the easy things first.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jjurva
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
12
Jan 2, 2012 02:37 PM
masterson32
Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150
3
Dec 17, 2009 01:45 PM
PrintNCut
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
6
Jul 20, 2009 12:05 PM
390fourby
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
1
Sep 24, 2003 12:09 PM
fordzrule
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
10
Jan 9, 2002 10:21 AM




All times are GMT -5. The time now is 10:45 PM.

story-0
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-1
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-2
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-3
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-4
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-5
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-6
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE
story-7
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!

Slideshow: Ranking the 5 things owners love about their Super Duty and 5 things they don't

By Joe Kucinski | 2026-04-29 16:36:49


VIEW MORE
story-8
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!

Slideshow: Ranking all 12 Ford truck engines available in 2026.

By Michael S. Palmer | 2026-04-22 13:32:20


VIEW MORE
story-9
The Best F-150 Deal of Every Trim Level (XL through Raptor)

Slideshow: The best Ford F-150 deal for every trim level (XL through Raptor)

By Joe Kucinski | 2026-04-21 15:59:01


VIEW MORE