SPONSORED LINKS

1997 4.3 fuel foul sprk plugs

Tiny
CLAY W EATON
  • MEMBER
  • 1997 CHEVROLET CHEYENNE
  • 6 CYL
  • 2WD
  • AUTOMATIC
1997 4.3 runs bad audible miss fire foul plugs 1 and 2 cylinder compression 154 on 2 and 170 on 1 plugs changed cap and rotor changed underload engine back fires and misses
Wednesday, January 5th, 2011 AT 9:01 PM

4 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
If its the spider injection-check the fuel pressure regulator and the nut kit-under the upper plenum if its leaking
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, January 5th, 2011 AT 9:36 PM
Tiny
CLAY W EATON
  • MEMBER
  • 10 POSTS
I have the upper plenum off how do I check the spider injectors now and what nut are you talking about and dont tell me the nut behind this question
Was this
answer
helpful?
Yes
No
Thursday, January 6th, 2011 AT 7:10 PM
Tiny
CLAY W EATON
  • MEMBER
  • 10 POSTS
Also checked the fuel pressure 65 psi
Was this
answer
helpful?
Yes
No
Thursday, January 6th, 2011 AT 7:11 PM
Tiny
CLAY W EATON
  • MEMBER
  • 10 POSTS
After replacing the spider injector assembly it still ran the same way went back to parts store and got another distributor cap and its running great whodathought that a new cap would be defective
Was this
answer
helpful?
Yes
No
Saturday, January 8th, 2011 AT 7:04 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE

Sponsored links