To be honest, not giving your turbo diesel a good hard thrashing every now and again. I know it sounds silly but the high temps created will help free up the carbon deposits with the egr system and intake manifold, which cause the sticking egr valve.
I have worked on many Ford tdci's vauxhall cdti's and done servicing on police cars. Never seen a police car with a blocked up egr and clogged intake manifold, but have seen the same car with less than 10K from new with it completely blocked - was a 50+ lady who admitted never going above 2500 rpm.
Only reason for the police car not having the problem (with 100K+ on the engine) is the engines are on full throttle for sustained periods of time and it burns off the the soot and carbon.
No, the catalytic converter is downstream from the EGR valve so it has no effect on it.
Yes.
If the cat goes bad you will notice a large reduction in fuel economy, and it causes your vehicle to produce a lot more emissions. This may also cause your oxygen sensor to go bad and possibly your EGR valve as well.
Depends on the vehicle. They usually do not go bad. I know that some vehicles are pron to EGR problems, not the valve. The EGR port gets clogged, causing a vehicle to run poor. The port can be cleaned, I just had mind done on my 2000 Accord V6. The vehicle has not sputtered or had a bad start since.
It does not happen as often as you might think. But it does happen. Usually EGR valve goes out if you car is 10 years and older and you have way over 100K miles. Also if the valve is cleaned regularly it will work longer.
Yes, the Diamante has an EGR solenoid. On any Mitsubishi, if the car has an egr valve, it has a solenoid to operate the valve. Just follow the vacuum line from the valve and it will go to the solenoid. There may be another one way valve between the valve and the solenoid, though. The solenoid is electronic.
The egr valve is the engine gas recirculation valve. It is located under the intake plentum and usually is gold or black and looks like a little bell. they usually don't go bad, the vaccum lines will often break, or it will get internally clogged.
IT IS A BAD THING TO HAVE YOUR E.G.R. VALVE STUCK OPEN. THIS WILL GIVE YOU A LEAN AIR/FUEL MIXTURE AND DAMAGE YOUR ENGINE. EGR VALVES DONT GO BAD TOO OFTEN; THEY JUST CARBON UP. TRY CLEANING IT WITH CARB CLEANNER. REINSTALL AND TRY IT OUT.
it located in very bad area between the firewall and the intake manifold,actually it is on the intake manifold.if you want to reach the egr valve yo have to go under the car and take off exhaust pipe before the catalytic converter.
The Red line is the Vacumme line the comes from the drivers side of the intake to the EGR selonoid (at the top) the Green line goes from the EGR selonoid directly to the EGR valve (at the bottom of the Selonoid).
Check the EGR selenoid valve. The vacuum will pass throught the defective selenoid valve and go the EGR valve even if it has not been activated. The ECM will not detect a defective selenoid valve - only an EGR problem.DPFE sensorIf it's a Ford product, you may need a DPFE sensor. You should also check for a restriction in the EGR passageway.
Depends on the year. Here is a site that has pictures of an EGR valve for a 1997 - 1999 Suburban: http://www.racepages.com/products/?D=gmc+suburban+egr+valve&Nty=1&Ntx=mode+matchallpartial&Ntk=Main&N=4294950670+4294963366+9926&Dx=mode+matchallpartial&Ntt=gmc+suburban+egr+valve Go to www.racepages.com and search for an EGR valve for your year rig.