Question about 2003 Ford ZX2

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2003 ZX2 idling very rough after having alternator changed. Idling between 500 and 900RPM. How can I advance the timeing?

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You can't easily advance timing on these engines. Remove the belt on the new alternator and check if it spins reasonably easily and there is no bad bearing in the new unit.

Also check that the wires coming from the alternator are not frayed. Especially check that the wire going to the postive battery terminal do not have any small fragments of wire touching the frame of the car, engine block, etc. This will cause a short circuit and really load down your alternator (make is seem like it is running rough but really just trying to spin the heavy load on the alternator from idle RPMs).

Posted on Nov 17, 2009

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The timing is not adjustable. check all the connections on things that were removed when the alternator was replace.

Posted on Nov 17, 2009

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Posted on Jan 02, 2017

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SOURCE: 2003 LINCOLN NAVIGATOR: ROUGH IDLING

Check air filter if it's dirty replace, replace fuel filter. these are the most neglected things on a car. If you need more help let me kow.
Randy

Posted on Nov 09, 2010

Testimonial: "THANKS FOR THE HELP, I REPLACED THE AIR FILTER. I AM NOW TESTING IT BEFORE I REPLACE THE FUEL FILTER. I WILL ADVISE LATER OF THE RESULT."

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SOURCE: 2000 Lincoln Navigator with rough idling and service engine light

i had the same trouble, there is a rubber boot under the cover on the top of the motor, it is coming from the egr valve, takes about 5 mins to repair and less than 5 dollars.

Posted on Jul 25, 2009

  • 61 Answers

SOURCE: 1999 Escort ZX2 idling rough & not shifting in to overdrive

This could be caused by several things. Bad MAF sensor, TPS could be defective. You need to have the vehicle scanned for codes. You can have this done for no charge at AutoZone.

Posted on Nov 18, 2009

  • 275 Answers

SOURCE: 2003 Mazda Tribute will start, idle rough for a

check the fuel filter air filter and vacuume lines if they all good make sure the spark plugs are making a bright blue spark

Posted on Jan 20, 2010

  • 2 Answers

SOURCE: I have a 2003 chevy

I have a 03 silverado and my truck did the same thing I had to change the distrubator cap and rotor button lets see every 6 months, They ran the air condition line over the distributor and the condensation from it rotts the inside of distributor

Posted on Jan 06, 2011

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