Question about Cars & Trucks
Changed wires cap and plugs also
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Posted on Jan 02, 2017
SOURCE: car idles rough and stalls
Have you checked the EGR valve? it may be leaking, touch it with a wet finger at idle, if it is leaking it will be very hot, the useual cause is either carbon or back pressure transducer problem, another issue may be fuel pressure, have you tested the pressure yet?
Posted on Sep 04, 2008
SOURCE: car runs rough at idle
clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.
Posted on Sep 04, 2008
SOURCE: 1997 chevy truck running rough
Is this a 5.7? They are notorious for intake manifold gasket leaks. When mine did it, the diagnostics blamed it on an ignition misfire also! Replaced the gaskets and it runs smooth!
Posted on Apr 01, 2009
OK, and now it looks like coachjoehutc is thinking the same as me. When I look up your car, it takes me to the Mazda Millenia engine--does that sound right? It only shows 2 cam sprockets, but maybe there's a gear in the head to turn the other cam? Anyway, I'm pasting a picture of the marks. There's a little tang coming off the head that marks the timing. Now unfortunately it appears the timing covers are the one-piece type that stretch all the way down (I was hoping there would be a section on the top you could remove to see the gears). I hate for you to have to take the whole front off and find out I'm wrong, so maybe you can just remove the upper cover screws and, if the cover is plastic, it may let you bend it out far enough to see those marks on the gears (????). If so, then rotate the engine to TDC for #1 (there is an ignition timing tab to use for that around the one o'clock position). Look for the marks on the gears--if I'm right, they will only be off the tangs by a tooth (any more and the engine wouldn't run). If you don't see the dots on the gears, you're on the exhaust stroke and need to turn the engine another 360. Is this all making sense? Let me know if you have questions.
If you want to see the instructions to take off the whole covers, I can send them, or maybe you can access them at http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0900c152802610a5
Posted on Sep 08, 2010
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