EGR valve stuck at extended position

OMAR MALKAWI975

MEMBER
2007 CHEVROLET OPTRA
1.6L
4 CYL
132,678 MILES

Good evening,

Car has an automatic transmission. It takes high gasoline consumption trouble. EGR valve has been cleaned but it has problem, its valve stuck at extended position as shown by attached image.

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Monday, July 8th, 2019 AT 6:37 AM

5 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Hi Omar,

Yes, that valve as seen its better days. This will cause fuel consumption and some performance issue even a check engine light.

Most EGR valves can be cleaned but when they are in this condition, I would replace it and then retest the vehicle. Just replacing the valve could fix all your issues so I would not do anything else until this is repaired.

Let me know if you need any other information. Thanks

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Monday, July 8th, 2019 AT 11:50 AM

OMAR MALKAWI975

MEMBER
13 POSTS

Good morning.
Hello, I checked it on the computer and everything shows its normal, and when I full the tank with gasoline 60L, it cross 380 km.
Sir, I did the following maintenance services.
1. Throttle, fuel injectors and other sensors have been cleaned.
2. I Replaced Air Filter.
3. Oxygen sensor has been replaced.
4. E.G.R valve has been cleaned but it has problem, it's valve stuck at extended position as shown by attached image.
5. Spark plugs has been replaced before 4 months ago shown by attached image, they are arranged in order but I cleaned them.( 3000km until now)
Gasoline consumption still too high. Please solve this problem, it takes too money daily.
Best regards

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Monday, July 8th, 2019 AT 8:08 PM

KASEKENNY

MECHANIC
18,907 POSTS

Hi,

You named a couple problems that will effect fuel mileage that you have not correct. You need to replace the EGR and I would put new plugs in it again. These plugs are worn due to high fuel saturation. Once you do these two things, I would retest your fuel consumption.

If you still have high consumption, then you need to get the fuel pressure while driving and see what it is. You could have high fuel pressure causing over fueling. Also, you could have injector issues causing it to dump too much fuel. Do you have any smoke from the exhaust while driving? Again, all of this should be inspected after your EGR and plugs have been replaced.

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Tuesday, July 9th, 2019 AT 3:55 PM

OMAR MALKAWI975

MEMBER
13 POSTS

Hi.
Thanks very much.
Due to your question below
Do you have any smoke from the exhaust while driving?
No. I don't have any smoke from the exhaust while driving.
But I'll tell you the result when I replace spark plugs and EGR when I find iEGR Because we don't have Chevy Optra spare parts here.
Best regards sir.

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