Signs of a bad EGR

[fyremanpat]

What are some of the tell tale signs of a bad EGR?...other than rough idle. How long do they last before they hinder performance?

 

[sasquatch094]

when the check engine light comes on : ) lol, idk i waited till mine went on, then i went down to autozone and they said it was it and to buy a new one, i bought a new one and my light still comes on, so i have no idea.... haha

 

[JP422]

I've read that it also hinders MPG...

 

[sasquatch094]

thats true too, but before mine went bad or something wnet bad,i was never even sure what kind of MPGs i should/wuold be getting

 

[fyremanpat]

Im getting about 275 miles to the tank...all city driving and on 305's.

 

[JP422]

Holy..... damn. I gotta check my EGR...

 

[sasquatch094]

i get about 250 per tank, mainly city..... damn i think im missing something here...

 

[tahoeman960208]

When you say per tank, do you mean 30 gallons, or whenever you decide to fill up? Also, when I replaced the EGR on my Caddy it was because there was a hesitation in the motor when accelerating from a dead stop. That fixed the problem.

 

[sasquatch094]

my tank is a 27 gallon... and i usually leave one or 2 gallons in it before i fill up.. so around 10 to 12 mpg.... idk why its soo low tho??? i had a complete tuneup this summer, tire pressures all good, ??? beats me..

 

[JP422]

Hey sas... what kinda shift kit do you have?

 

[fyremanpat]

Im sure mileage has a lot to do with it and internal condition. My Hoe has had premium gas since day one and a has 108k....also its flat here in VA

 

[sasquatch094]

B&M, its all flat here to in Ohio Cleveland... im not sure if i have that much of a lead foot or what tho..

 

[tahoeman960208]

10 to 12 is about normal. thats what i get in my 96. my 02 with 50,000 miles gets 13-14 but thats with the 5.3 which is a much more effecient engine. all mpg's are in city, I don't know what either gets on the highway.