I have a 1991 Caprice with a 5.0 my Question is this, If I remove my E.G.R. from the engine can it be cleaned up by me? I think it might me stuck in the open position Thanks!!!
2006-12-31 02:12:34 · 6 answers · asked by Lots of money but no sense 2 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
Allso, can a stuck open E.G.R. valve cause the engine to cut off and on under Load?
2006-12-31 02:20:33 · update #1
provided all vacuum lines are correct. To check for correct operation of EGR Start your engine and with your index finger lift up the diaphramof the EGR vale.If the motor dies it is working correctly.If your motor will not start it could be a open EGR valve. Chances are if it is sticking you should replace it.
2006-12-31 07:32:00 · answer #1 · answered by (A) 7 · 0⤊ 0⤋
Yes, these are fairly easy to remove and replace. Cleaning them should not have to be done, but they can be cleaned. If it is stuck in the open position, all you have to do is knock the hunk of carbon out and it should return to normal operation. I would suggest a de-carbonizing procedure after the re-install to prevent more crap from getting lodged in the valve. As far as you other questions, an EGR valve that is stuck open would make the motor run awful or stall a lot at idle. At speed it might feel like a misfiring motor. This makes me think you have something else wrong. You say cutting out so I would tend to start looking at the spark plug ends for corrosion, especially at the distributor ends. Also check the coil wire and coil towers for more corrosion. If any corrosion is found on any of these wire ends, coil tower, or dist. cap connectors, replace all of them as even sanding it off will not permanently repair this. Do some checking to see if this is the case. They also have been known to carbon track down the spark plug ceramic which would require plugs and wires as well. Check your fuel filter for plugging while you are at it as this is common and causes symptoms like you are complaining of. Good luck.
2006-12-31 14:55:37 · answer #2 · answered by Deano 7 · 0⤊ 0⤋
Yes it can, you can clean the ports as long as you do not get chemicals on the bladder. Sea foam is a great product for cleaning carbon, You may need a gasket. An EGR valve with carbon build up that will not allow it to close will make your engine run real bad at the lower RPMs.
2006-12-31 10:17:08 · answer #3 · answered by 007 4 · 1⤊ 0⤋
usually it's not to bad at all, a lot of times, just tapping it on the ground and shaking all the loose carbon out will be enough, that way you dont need to worry about what chemicals might do, or take it apart or anything interesting like that. also, it may be a good idea to try starting the car with it uninstalled, and the hole on the intake pluged. that will tell you in your egr is really the problem, or if its something else.
2006-12-31 11:54:10 · answer #4 · answered by andrew b 2 · 0⤊ 0⤋
Wow, like I said, that was a WAG. Not sure how it's put together, but I know people are cleaning up the EGR on the 4.3 V6.
2006-12-31 10:19:19 · answer #5 · answered by Anonymous · 0⤊ 0⤋
You can try to clean it out. It's not a hard thing to do but if it's to fare gone just go get a new one. There cheap so it's worth the money.
2006-12-31 10:16:12 · answer #6 · answered by Anonymous · 0⤊ 0⤋