Question about Cars & Trucks
Yours is a flex fuel l-4 2.2 engine,ain't one.different emission set up engine type.
Posted on Oct 28, 2012
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Posted on Jan 02, 2017
SOURCE: 2002 Volkswagen Beetle Diesel
I don't think that's the EGR valve that the shop is talking about for that kind of dollar figure. More likely the injectors or injector pump....accordianman
Posted on Jul 29, 2008
SOURCE: 1987 toyota 22r engine
That is usaully the vacuum advance diaphram on the distributor. Its job to advance the distributor when at idle. The diaphrams inside rot and leak air, causing it not to advance. Take off the distributor cap and use a vacuum pump to individualy test each port (two of them) on the vacuum advance diaphram. You should see it pull back, if not replace it. They are sold at your local auto store, oddly its cheaper to get a whole distributor that has one for $100 that to get it alone for $150.
Posted on Dec 28, 2008
SOURCE: egr valve on a 2002 Saturn SL1
Take off air breather tube,you should see a cone shaped part, on top and at back of engine right by the gas pedal cable. Remove the 2 10mm bolts, and it should come right off.
Posted on Mar 16, 2009
The mid-02 and up do not have an EGR valve. GM redesigned the 4.3L and introduced it in the middle of the 2002 production run. The fuel injection spider, EGR system, knock sensor type, and a few other "refinements" were made at that time.
Have a scan tool capable of opening and closing the related solenoids in the EVAP system to verify that they were working? Did you check the engine for smoke in the intake that would result from a malfunctioning EVAP purge solenoid? If the purge solenoid were stuck open, then it could act similar to a failed or failing EGR valve.
Have a shop with a dyno, do a Drive cycle to refine the problem. Here is a link on what a drive Cycle is. http://www.obdii.com/drivecycle.html
Good luck and hope this helps. You can always go to Auto Zone and have them scan the truck for any codes, it just may time for a tune up. Not know how the truck has been taken care of before you, try add Marvel Mystery Oil to the engine 1000 miles before it's oil change. That should clean up any internal dirt and do not use any engine oil flush, that just promotes oil leak.
Keep me posted on how things are going, I also found that the only thing the GM 4.3 like is the OEM distributor cap and rotor, every after market gave me a rough running engine.
Posted on May 13, 2009
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