Try cleaning the egr valve. Worked for me.
The egr valve is located behind the air intake.
-Remove the air intake.
-Using 10 mm socket, universal joint adapter, extension and ratchet, remove the two 10 mm bolts securing the egr valve to the intake manifold.
-Using the extension helps, since it's a tight area to work in. Makes the removal and installation so much easier.
-Be careful not to ruin the gasket. You can replace it but you don't need to if you're careful while taking it off.
-Using a metal pick and carb cleaner, clean the egr valve until most of the carbon buildup is gone.
-Make sure the solenoid can move freely, WD-40 works well to lubricate the solenoid.
-Install egr valve, tighten bolts nice and tight, you can torque it to spec if you want (15-25 ft-lbs?).
You'll probably have to clean it every year...try not to buy cheap gas...as in crappy gas...Shell works well...Good luck
10 mm socket, 3/8 in. drive
24 in. Extension, 3/8 in. drive
3/8 in. universal joint adapter
Ratchet, 3/8 in. drive
carb cleaner, spray bottle
wiping rags
metal pick
You didn't mention fuel filter. I'd also take time to have fuel pressure tested, as well as exhaust checked for restriction such as plugged catalytic converter.
Could be injection but looking at plugs or exhaust should be able to point you in right direction if that's the case. If you step on it (gas pedal) hard from slow speed what happens?
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CHEVY ASTRO VAN ..WOITH THE VORTEX ENGINE...IT HAS THE INJECTION SYSTEM ON IT ....COULD IT BE THE INJECTION ???THANKS
I PUT A NEW FUEL FILTER ON IT ALSO ...HAVE NOT DONE A EXHAUST CHECK YET ....COULD IT BE A INJECTION PROBLEM???
There are three basic problems with cars. Fuel, Spark, and Air. Yours sounds like a fuel problem. I don't know your model but does it have a carburetor or is it fuel injected? I am guessing it is carburetor. These are complicated little gadgets :) you should get hold of a workshop manual for your model that describes how to clean out your carbi. Hope this helps
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