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  #1  
Old 06-02-2010, 09:50 AM
TommyX51 TommyX51 is offline
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Default EGR -Insufficiant Flow

2001 V6 3.0 engine; had it to the mechanic and he replaced the EGR twice; I've replaced it once myself in the last 12 months. I can't find any vacuum leaks, so what is the best way to clean the EGR ?
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Old 06-02-2010, 10:17 AM
chenley chenley is offline
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Default Re: EGR -Insufficiant Flow

Kind of unrelated, although is it stalling at stop lights and random other places? My 93 Altima had what sounds like the same problem.As far as I know, they are still trying to trace down what is causing it after I sold it for $900 two years ago.

A tuner mechanic friend of mine had that problem on his RX8 and sprayed carb cleaner (<-- I think) into his vacuum tubes which fixed the problem somehow.
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Old 06-02-2010, 03:45 PM
TommyX51 TommyX51 is offline
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Default Re: EGR -Insufficiant Flow

Just running rough. Only 2 codes the EGR issue and misfire on cylinder #5. Gonna' change the coil pack and dump a can of Seafoam into it after I clean the EGR.
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Old 06-02-2010, 04:29 PM
RangerLuc RangerLuc is offline
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Default Re: EGR -Insufficiant Flow

take it off and spray the shit out of it with MAF cleaner
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  #5  
Old 06-11-2010, 12:17 AM
locotacoma locotacoma is offline
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Default Re: EGR -Insufficiant Flow

Hey all- I am am having the same set of codes. Here is what I have do so far with no result.
1. removed EGR and replaced it and connecting vac lines.
2. pulled the plugs and replaced all and the coil pack.
3. New top quality wires
Still ran bad and seemed to only be firing on 5 cyl. Const miss no matter what.
So I checked for spark and theres plenty. not sure on the timing of the spark but solid spark
just for shits and giggles I pulled the wire from the plug and started the truck and it ran the same way it did with the wire attached. So I can only guess that cyl # 4 is not firing.
what should I try next? Fuel pressure and im not sure how to check pressure at the injector level. I know you know do it from the rail but that wont tell me if the injector is dead. Any one? I need some help with this one... If anyone has had this happen and had a fix please let me know where to start. Thanks in advance.
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  #6  
Old 06-11-2010, 06:02 AM
Lord of War Lord of War is offline
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Default Re: EGR -Insufficiant Flow

If you buy the EGR part from a place like Autozone they have atleast a year warranty.

I hope you arnt paying full price for a new one every time.
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  #7  
Old 07-01-2010, 04:37 PM
TommyX51 TommyX51 is offline
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Default Re: EGR -Insufficiant Flow

Just found out some new info: Take the throttle body apart and clean out the exhaust port will be clogged with carbon. When you get it all clean and shinny most or all of your problems may disappear. You will have to replace the throttle body gasket. My EGR is new little more than a year old. I just replaced the MAF sensor and it helped a lot.
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  #8  
Old 07-03-2010, 09:39 PM
mazdaman99 mazdaman99 is offline
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Default Re: EGR -Insufficiant Flow

this is usually a DPFE sensor...a new one should solve your problems
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  #9  
Old 07-24-2010, 12:47 PM
Lonncarr Lonncarr is offline
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Default Re: EGR -Insufficiant Flow

I E sensor and hoses, idle control, egr valve, egr solenoid, ign pack, thermostat...cleaned throttle body (which helped out alot) and am now getting code P0402 (excessive EGR Flow). Am gonna try the MAF cleaner and seafoam trick. How do I administer the seafoam in the intake? New one to me.
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  #10  
Old 07-24-2010, 01:53 PM
STL STL is offline
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Default Re: EGR -Insufficiant Flow

Quote:
Originally Posted by Lonncarr View Post
I E sensor and hoses, idle control, egr valve, egr solenoid, ign pack, thermostat...cleaned throttle body (which helped out alot) and am now getting code P0402 (excessive EGR Flow). Am gonna try the MAF cleaner and seafoam trick. How do I administer the seafoam in the intake? New one to me.
Just do half can in brake booster and the other half in the gas tank

Be sure to go slowly into the brake booster so it wont stall the truck. Also do it in the gas tank when you have 1/4 tank or less

Or you can break it into 3 areas. Brake Booster, Fuel Tank and Crankcase.

If you do it in the crankcase. By pouring it into where you would oil. You will need to change your oil after.

Also it may foul your spark plugs so be prepaid to change those after sucking it into the brake booster.

On the driver side firewall that big round thing take the hose off there and stick it in the can and let it suck it out. not the whole can though

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  #11  
Old 07-24-2010, 02:47 PM
Lonncarr Lonncarr is offline
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Default Re: EGR -Insufficiant Flow

Awesome...Thanks...It worked! Cleaned the MAP sensor and did the seafoam cleared the codes drove truck, changed plugs and this things runs like it did when it was new!! Haven't peeled out in a few years now..lol..Thank you guys so much.
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  #12  
Old 07-24-2010, 03:22 PM
STL STL is offline
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Default Re: EGR -Insufficiant Flow

Where all did you use the seafoam at?
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  #13  
Old 07-25-2010, 06:10 PM
Lonncarr Lonncarr is offline
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Default Re: EGR -Insufficiant Flow

Used the seafoam in the booster and the fuel tank. Drove the truck today and go figure..."check engine light " again...same code...P0402...excessive EGR flow.....what gives...
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  #14  
Old 09-25-2010, 04:50 AM
expertbasser expertbasser is offline
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Default Re: EGR -Insufficiant Flow

Quote:
Originally Posted by mazdaman99 View Post
this is usually a DPFE sensor...a new one should solve your problems
I am assuming (& we ALL know what ASSUME means! LOL!) this sensor is the one that controls the vacuum from the intake to the EGR valve? IF SO, I've had my own suspicions about this thing from the start!
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  #15  
Old 09-26-2010, 06:58 PM
sgtsandman sgtsandman is offline
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Default Re: EGR -Insufficiant Flow

A buddy found out his was bad after changing the EGR valve and it was still throwing a code. He has a F-150 with the 4.2L V6.
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