I fixed that surge problem

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Mar 18, 2003 | 10:56 PM

#16

omni

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I fixed that surge problem

GrammaDriver,sorry for the over site yes its a 4.9 it was in my original post. and I'd like to thank nitro 94 and racerguy again for helping me solve that surge problem, Its been running great, I love my truck again

Last edited by omni; Mar 18, 2003 at 11:15 PM.

Mar 19, 2003 | 01:14 AM

#17

93bigbronco

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Joined: Apr 2001

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From: Tigard+Corvallis OR

I fixed that surge problem

so is this just a problem with the 300 inline 6??? or would it help with a 302 or 351??

Mar 19, 2003 | 02:05 AM

#18

lexluthr69

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Joined: Jan 2003

Posts: 383

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From: Newport News USA

I fixed that surge problem

Even though the 302 is supposed to run right at optimal mixture WITH the EGR valve, it would make sense to me that if you're running lean when under load (normally when egr becomes active), then it would help to richen up the mix if you restricted the EGR flow. Am I being logical with this?

Mar 19, 2003 | 04:04 AM

#19

GammaDriver

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Joined: Dec 2001

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From: Southeast FLA

I fixed that surge problem

Based on mnay posts about this - primarily because new FTE visitors who are 4.9 owners don't post their pertinent information (with every post - put it in your signature) - what I've read is that many V-8 owners find that the carbon that eventually builds up and blocks the EGR flow makes them run worse. There are many reports of cleaning out the EGR passages (on V-8s) and finding the engine runs better.

Why? Heck, I don't know. But the V-8's aren't running as lean as the I-6's (19 lb. vs. 14 lb. injectors) (plus the I-6's were reportedly fitted with a EGR valve from 400 cubic-inch engines - but use only one of the two passages - which is, apparently, still way too much exhaust gas).

This has obviously been hashed out to some degree - I recommend using the Search function of this site.

Best,

Mar 19, 2003 | 04:12 AM

#20

GammaDriver

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From: Southeast FLA

I fixed that surge problem

Here ya go - I'll even do some of the work for ya - two posts about it using the SEARCH function:

https://www.ford-trucks.com/forums/s...hreadid=101865

https://www.ford-trucks.com/forums/s...hreadid=101428

Mar 20, 2003 | 02:48 PM

#21

IES

Junior User

Joined: Apr 2002

Posts: 99

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I fixed that surge problem

Hey GammaDriver,
I've been trying to do a search on how to clean the EGR passages but I can't get anything.
The posts that you provided tell you that you should clean your EGR passages but I'm looking for something on how to clean them?
Do you have any info on that? Can you provide any posts?

Thanks in advance if you can!

Mar 20, 2003 | 04:51 PM

#22

pfogle

Lead Driver

Joined: Feb 2003

Posts: 8,140

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From: Oak Harbor, OH

I fixed that surge problem

I would use a small cylindrical wire brush and some good carb cleaner.

Mar 20, 2003 | 07:10 PM

#23

GammaDriver

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From: Southeast FLA

I fixed that surge problem

IES, ya can't go wrong with pfogle's simple advice there. It's the same as I've read others use.

There are plenty of good carb cleaners out there. I know I like BG's Air Intake Cleaner, and I imagine it would handle the carbon just like a carb cleaner spray would.

Heck, I reckon one could take a dremel tool to a really clogged passage if one wanted to.