EGR valve question
Thread Starter
Intermediate
Joined: Sep 2009
Posts: 43
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From: KY
EGR valve question
I tore my car apart today to install some bosch III injectors.The pintle on my EGR valve didnt seal when closed,i noticed this when i was cleaning it.I have changed quite a few valves over the years and i have never seen one that didnt seal off.I checked the diaphram and it worked normally,but i think i need a new EGR.My car has a rough idle (cold) but seems to run fine down the road ,i hope this fixes it.So far i have changed.
Fuel filter
Spark plugs
Plug wires
Distr. cap
Rotor
Injectors
Coolant sensor
Fan temp sensor
Oil pressure switch
Thermostat,antifreeze
cleaned IAC motor
checked TPS,works correctly
Also afer a test drive my MPG AVG was around 18,before the injector change it would stay around 24 are these things accurate?
Fuel filter
Spark plugs
Plug wires
Distr. cap
Rotor
Injectors
Coolant sensor
Fan temp sensor
Oil pressure switch
Thermostat,antifreeze
cleaned IAC motor
checked TPS,works correctly
Also afer a test drive my MPG AVG was around 18,before the injector change it would stay around 24 are these things accurate?
Last edited by shiyfire; Oct 19, 2009 at 08:15 AM.
Team Owner
Joined: Oct 2000
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From: Fort Knox, KY
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Are you getting a Service Engine Soon light on your DIC? If so, is it Code 32? If you see physical damage to your EGR valve diaphragm, I'd replace it. They're cheap enough.
Also, replace your PCV valve. It's an important, cheap, (though often neglected) part of your tune-up regimen and can also improve rough idle problems.
Also, replace your PCV valve. It's an important, cheap, (though often neglected) part of your tune-up regimen and can also improve rough idle problems.
Thread Starter
Intermediate
Joined: Sep 2009
Posts: 43
Likes: 0
From: KY
The PCV valve totally slipped my mind,i will change it today just to see.I am not getting a service engine light and the EGR diaphram is working with a vacuum gauge hooked to it. The pintle does not seem to seat and seal off the flow and that does'nt seem right to me so im gonna change the EGR.
Team Owner
Joined: Oct 2000
Posts: 96,443
Likes: 9
From: Fort Knox, KY
Cruise-In IV Veteran
Cruise-In VI Veteran
Cruise-In VII Veteran
Cruise-In VIII Veteran
The PCV valve totally slipped my mind,i will change it today just to see.I am not getting a service engine light and the EGR diaphram is working with a vacuum gauge hooked to it. The pintle does not seem to seat and seal off the flow and that does'nt seem right to me so im gonna change the EGR.
Just out of curiosity, have you removed it for inspection/cleaning or just verified its operation via Mityvac hand vacuum/pressure pump or other means?
Melting Slicks
Joined: Nov 2005
Posts: 2,736
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From: WAY UPSTATE NY
Are you getting a Service Engine Soon light on your DIC? If so, is it Code 32? If you see physical damage to your EGR valve diaphragm, I'd replace it. They're cheap enough.
Also, replace your PCV valve. It's an important, cheap, (though often neglected) part of your tune-up regimen and can also improve rough idle problems.
Also, replace your PCV valve. It's an important, cheap, (though often neglected) part of your tune-up regimen and can also improve rough idle problems.
But You said DIC 
