Question about 2002 Ford Taurus
This Code usually means that extra air is coming into the engine. The Intake manifold gasket can be leaking or a nearby Vacuum device is broken internally and is drawing in air.
To test for these leaks, with the engine running, you use an old spray bottle of water and spray around the seams of the intake manifold. Any leaks will change the RPM or stall the engine.
Check with an autoparts store for the type of gaskets your intake uses. Some of the V-6 engines used a 2 piece sandwiched design and the two halves had a gasket inbetween. After years of use,the gasket would fail.
Posted on Feb 08, 2012
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Posted on Jan 02, 2017
SOURCE: vehicle failed emissions testing
You need to replace the intake upper plenum gaskets. There is two pieces, a top cover with one big silicone o-ring gasket and a lower half with six smaller silicone o-rings for the individual intake ports. You can buy these as a set, just for this job. Start this job by removing the wiper blades, then release all the screws, (including the ones that support the wiper motor), that hold that big black plastic valence at the back of the engine compartment. Pull that out of the way, you will have to pull the windshield washer hose through it, just disconnect it on the engine side, now you have access to the plenum. It's a pretty easy job now to remove and replace both halves, just a bunch of 8mm screws hold it all together. Take notes or digital pics along the way so you can pop it all back together. My only caution would be; when you have it apart, do not drop anything in the intake port! I always stuff kleenex in these while I'm working in case something slips out of my hands. Also, don't over tighten, it's all plastic. If you don't want to do it yourself, a shop should charge about an hour and a half, plus the codes must be reset and the van driven until all the monitors are ready.
Posted on Mar 26, 2009
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