series 2 V6 no start.

120,000 MILES
Avatar
PCDJ64
  • MEMBER
  • 127 POSTS
3800 series 2 engine will not run at all, the security light does not stay on or blink and have tried with 2 different keys in case it was the pass key or VATS. if the car sits a couple minutes it will almost catch and then just turn, try again right away it only turns, sit again for a couple minutes and almost catch again, holding pedal part way does nothing to help.
when i check for fuel or spark there is none at all yet it does almost catch on first try. i let the car sit overnight and the next day it actually started but then stalled a few seconds later like it was running out of fuel. i have dealt with bad VATS or passkey and the light will flash or stay lit and the car will run for a second and die, this particular issue is not acting like that.
i checked the fuel pump relay, ignition relay and fuses under the hood, none are blown or bad.
Aug 31, 2012 at 12:50 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
fuel pressure check. start there. you need to give us the pressure readings

Roy
Aug 31, 2012 at 12:57 PM
Avatar
PCDJ64
  • MEMBER
  • 127 POSTS
fuel pressure zero, spark none
if it sits a couple minutes the pressure is 20's for a brief second then none.
Aug 31, 2012 at 1:13 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
sounds like the fuel pump has failed. verify power to the pump with key on for the first 2 seconds

Roy
Aug 31, 2012 at 1:24 PM
Avatar
PCDJ64
  • MEMBER
  • 127 POSTS
does that also stop the spark?
you never hear the fuel pump turn on but the car almost catches after it sits a couple minutes every time.
Aug 31, 2012 at 1:36 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
try spraying carb cleaner in the air filter and see if it start ups for a couple of seconds. this will verify spark and verify fuel pump

Roy
Sep 1, 2012 at 11:43 AM
Avatar
PCDJ64
  • MEMBER
  • 127 POSTS
negative, makes no difference, the only way it almost starts is to let it sit a couple minutes otherwise it only turns over.
Sep 1, 2012 at 11:48 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle