05-13-2008, 06:19 PM | #1 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
|
backfire problem
i have only been driving my truck maybe twice a week.... yesterday (sunday) i decided to finally tighten my tranny line on my radiator... then i noticed i had a spark plug wire that had fallen off...i knew i was running rough before so i plugged it back in...it now has a smoother ride...but now when i get up on the interstate i hit passing gear... and it back fire takes off backfires again and so forth...i noticed i had a little rust on the plug like it fell off a long time ago....could the backfire mean that im not getting a good spark and the tip of the plug needs to be cleaned...if so would it work if i took sand paper to get the surface rust off??
thanks, tim
__________________
1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
05-13-2008, 06:24 PM | #2 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
|
Re: backfire problem
Definitely a possibility or you have a bad plug wire.
|
05-13-2008, 06:34 PM | #3 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
|
Re: backfire problem
the wire looked good when i put it back on...ill try taking the plug out and taking sandpaper and clean it up then hit the interstate again and tell u if that helped..thanks
__________________
1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
05-13-2008, 07:05 PM | #4 | |
Registered User
Join Date: Feb 2007
Location: Mt. Sterling, Ky.
Posts: 205
|
Re: backfire problem
Quote:
Hope this helps. Eric |
|
05-13-2008, 11:13 PM | #5 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
|
Re: backfire problem
i know plugs dont cost that much but would you get a new one
__________________
1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
05-13-2008, 11:49 PM | #6 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
|
Re: backfire problem
Look in the dist. cap. When you run with an open wire like that it burns a track in the inside of the cap & will crossfire under load.
|
05-14-2008, 03:32 AM | #7 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
|
Re: backfire problem
i put in a new $2.24 ac delco plug and it fixed the problem runs smoother now
__________________
1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|