1997 PONTIAC TRANSPORT
119,000 MILES
Avatar
MSAMGAB
  • MEMBER
  • 44 POSTS
waiting for light to change car turns off restarted drove home, next day turn car on misfirering and engine check light came on, connected code reader and code P0300 radom / multiple cylinder misfire detected came up, took the first two spark plugs out to check them they were ok put then back, turn car on the engine check light when off.
Dec 13, 2012 at 8:49 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
So its running smooth now?
Dec 14, 2012 at 2:34 AM
Advertisement
Avatar
MSAMGAB
  • MEMBER
  • 44 POSTS
its still has the misfire
Dec 15, 2012 at 10:48 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
So you still have a code P0300?
Dec 16, 2012 at 6:41 AM
Avatar
MSAMGAB
  • MEMBER
  • 44 POSTS
yes same code
Dec 16, 2012 at 11:38 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
You need to check all the plugs wires connections etc.
Dec 17, 2012 at 6:09 PM
Avatar
MSAMGAB
  • MEMBER
  • 44 POSTS
changed the spaark plugs and wires its still doing the same thing, like it wants to shutoff and then it shutsoff after a few mins.
Dec 18, 2012 at 10:56 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Does it restart after it shut off by itself?Also did you look for a vacuum leak?
Dec 19, 2012 at 1:56 AM
Avatar
MSAMGAB
  • MEMBER
  • 44 POSTS
yes it restarts after it shuts off, how do i check for a vaccum leak and where
Dec 19, 2012 at 3:16 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
You can use some carb spray while its idling spray around all the vacuum hoses intake manifold gasket etc.If the rpms go up down or it stumbles or dies you found a leak.
Dec 19, 2012 at 3:36 PM
Avatar
MSAMGAB
  • MEMBER
  • 44 POSTS
thats how it started - stumbles, rpms go up and down then shuts off and thats when the engine light came on and the code P0300 show on the scanner, i'll try the spray and see what happens
Dec 19, 2012 at 4:45 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Alright keep me posted.
Dec 19, 2012 at 4:58 PM