 won't stay running #44601 December 30th 2004 9:24 am | Joined: Dec 2000 Posts: 449 addict | OP  addict Joined: Dec 2000 Posts: 449 | Hi everyone,
I was hoping you guys could give me some advice. A couple of weeks ago I took my van out of the garage for a ride. It ran great no problems at all. The following weekend I went into the garage to start it. It would not start. When I could get it to start it ran like crap and was smoking black smoke. The other day I changed the plugs, cap, rotor, wires, and fuel filter. It started easier, ran about 10 minutes then started running like crap and the black smoke came back. It is the 4.3 TBI. Any ideas on what could be wrong? Thanks for any help. | | |  Re: won't stay running #44602 December 30th 2004 12:51 pm | Joined: Sep 2001 Posts: 237 enthusiast | | enthusiast Joined: Sep 2001 Posts: 237 | egr valve possibly stuck open... very common | | | Re: won't stay running #44603 December 31st 2004 1:27 am | Joined: Aug 2001 Posts: 12,107 Likes: 37 Maniac | | Maniac Joined: Aug 2001 Posts: 12,107 Likes: 37 | | | | Re: won't stay running #44604 December 30th 2004 4:39 pm | Joined: Dec 2000 Posts: 4,043 pooh-bah | | pooh-bah Joined: Dec 2000 Posts: 4,043 | I had a bad temp sensor on my 87 making the TBI dump fuel like it was wide open. You really need a code scanner to properly diagnose this, otherwise you are just guessing. | | | Re: won't stay running #44605 December 31st 2004 11:11 am | Joined: Dec 2000 Posts: 449 addict | | OP addict Joined: Dec 2000 Posts: 449 | Thanks for the help guys. | | | Re: won't stay running #44606 January 03rd 2005 4:12 pm | Joined: Oct 2001 Posts: 28,125 Madman! | | Madman! Joined: Oct 2001 Posts: 28,125 | I would check the choke. Sounds like it is hung up. | | | Re: won't stay running #44607 January 03rd 2005 7:18 pm | Joined: Dec 2000 Posts: 4,043 pooh-bah | | pooh-bah Joined: Dec 2000 Posts: 4,043 | TBI- Throttle Body Injection- doesn't have a choke. | | | Re: won't stay running #44608 January 03rd 2005 9:06 pm | Joined: Oct 2004 Posts: 201 enthusiast | | enthusiast Joined: Oct 2004 Posts: 201 | see , computers are the devil | | | Re: won't stay running #44609 January 03rd 2005 9:12 pm | Joined: Dec 2000 Posts: 4,043 pooh-bah | | pooh-bah Joined: Dec 2000 Posts: 4,043 | No, not the Devil, just one of his minions...
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