SOHC bogging

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May 31, 2005 | 07:44 PM

dogman

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From: Tampa

SOHC bogging

2000 Explorer SOHC, Has come down with a case of the boggs when you try to take off from a light. No power feels like a 6000 pound trailer behind me. There are no codes and I have gone front to back looking for the problem and found nun. I have a SCT chip and have turned it off and the problem is still there. Changed gas and have run 100+ oct. in the X no change. Runs fine when above 35 mph.

Jun 6, 2005 | 08:41 PM

Rockledge

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From: Connecticut

Dirty fuel filter maybe?

When's the last time it had a tuneup?

Jun 7, 2005 | 06:02 AM

CowboyBilly9Mile

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From: Eastern WA

T/C locking way too soon or it's not in first when leaving the light?

Jun 8, 2005 | 06:08 PM

dogman

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From: Tampa

Did a tune up 2 weeks a go, thinking the samething. But it still bogging. Cowboy, was checking out that problem to. Have a bud with a drive line dino and we are going to see whats going on with the trans.

Jun 10, 2005 | 05:17 PM

lbokc

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You know, that's the exact problem I had when the EGR valve was bad.
You sure you don't have a code?

Jun 10, 2005 | 08:11 PM

dogman

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From: Tampa

No codes.Going to see whats up on sat.

Jun 11, 2005 | 02:31 PM

PW01

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MAF could be bad.

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Jun 12, 2005 | 02:29 PM

CowboyBilly9Mile

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From: Eastern WA

Well, with that ruled out and thinking EGR, I have to wonder if the EGR is opening too soon and too much. Remember, the EGR is closed at idle; if it opens too much too soon it will boog/surge. I'd like to think this would trip a code but I suppose it's possible that if there's a partial malfunction it may not. I'd be tempted to temporarily remove/plug the vac hose to the EGR valve and take a drive. If the problem goes away, you're onto something.