Transmission Question-PLEASE READ!
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
I only pluged the green hose for a moment to see if there was ANY vacuum going to the EGR. There was none, even when the motor was revved a little. Then I put the hose back on the EGR. Now, the sensor is the device that the EGR sits atop of correct?
Lead Driver
Joined: Feb 2003
Posts: 8,140
Likes: 4
From: Oak Harbor, OH
Yes, and you'll need to go to the dealer for the correct part. The ones from the discount stores are junk. There is a pin in them that moves with the EGR, and a lot of the aftermarket sensor's pin is the wrong length causing an error code.
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Thanks for your help. Ill remove the EGR and clean it whenever i get the time to replace the sensor.
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
My bronco has gotten 10 mpg with the EGR working and without the EGR working, so on it I am not convinced that the EGR was worth while for that truck but I got 13 mpg driving 55 mph which is only 2 mpg less than when it had the E4OD. The EGR is controlled by a switch that is cycling to let vacuum onto the valve and off so that the vacuum motor holds the EGR valve at the right position. Its vacuum is suppled by the vaccuum resiovoir canister on the pas. fender, which also supplies vacuum to the A.I.R. switches for the exhaust. The best mileage you can possiblity hope for is ~20 mpg if you are lucky with these trucks. Weight, gearing, and tire size are about the only factors you can truelly work on to improve the mileage on these trucks. Low weight, changed gearing to b/w 2.75 and 3.10, and 28 in diameter tires or buy a sedan because you just made one out of your truck.
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
The best mileage you can possiblity hope for is ~20 mpg if you are lucky with these trucks. Weight, gearing, and tire size are about the only factors you can truelly work on to improve the mileage on these trucks. Low weight, changed gearing to b/w 2.75 and 3.10, and 28 in diameter tires or buy a sedan because you just made one out of your truck.
