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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Backfiring in Manifold

  • Thread starter Thread starter 95strokerPSU
  • Start date Start date Dec 29, 2004

95strokerPSU

Member
Jul 29, 2004
986
1
19
Sacramento from Philly
Dec 29, 2004
#1
  • Dec 29, 2004
  • #1
I drove my car over to my friends shop today to get help fixing my turn signal problem (which are fixed now) and my car started to backfire like crazy. For the first 10 minutes everything was fine and then I jumped on it get around a truck to make a right. As soon as I shifted from first to second it started backfiring really bad and I had to pull over twice before I got to the shop because I didn't think I was going to make it. I'm assuming that it's due to a lean condition, so what should I do to try to fix it?

First thing I'll do is blow smoke into the brake booster vac line and see if I have a leak. But besides a vac leak what else could cause the backfiring? Thanks in advance.
 

iluv95stangs

New Member
Jul 17, 2004
86
0
0
Walker, La
Dec 29, 2004
#2
  • Dec 29, 2004
  • #2
Maybe timing? Check and see if your dist hold down bolt is loose or maybe the hall effect sensor is going out?
 

TheRedBlur

Active Member
Jul 7, 2003
15
0
38
seattle
Dec 30, 2004
#3
  • Dec 30, 2004
  • #3
oh man, this happened to a co-workers 5.0 like a year ago. I think it was his MAF. I thought long and hard about it (bevis and butthead laugh) anyways, I thought EGR is open all the way and shooting into the manifold, thought his timing was waaaay off like 180, but then it would never run. or a bad exhaust valve so when the intake valve opened, there'd be hot exhaust which would light up the new charge, etc. but I think it was his MAF.

I dunno, good luck though.
 
G

grrrrrrr

New Member
May 20, 2003
289
0
0
norfolk, VA
Dec 30, 2004
#4
  • Dec 30, 2004
  • #4
Could be a million things man, best bet is to buy a haynes or chiltons. I believe it has a troubleshooting section with this as the headline.
 

95strokerPSU

Member
Jul 29, 2004
986
1
19
Sacramento from Philly
Dec 30, 2004
#5
  • Dec 30, 2004
  • #5
Problem solved. I disconnected the o2 sensors and now the car drives fiine. On Monday I'll plug them back in and if the car backfires like crazy again then the o2 sensors are definitely the problem. Just thought I'd post what I learned so if anyone else has this problem.
 
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