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Old 06-28-2020, 08:46 PM   #1
GTSRider
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Default 2003 ION stalls at stop sign...otherwise....

My 2003 ION runs great in every way..... but stalls
at stop signs , and in any parking lot situation....it is
down right dangerous !
I have replaced IAC & TPS......cleaned out throttle body, &
IAC ports...but still does it ! Funny thing is.... not all the time ,
and only when at full hot operating temps... not when cold....
So....what's up ?
SHOULD I REPLACE FUEL INJECTORS ?
Can't think of anything else ?
Peter

2003 ION 230,000 miles
Hudson Valley , N.Y.
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Old 06-29-2020, 12:46 PM   #2
fdryer
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2003 L-Series 3.0L Sedan
Default Re: 2003 ION stalls at stop sign...otherwise....

At 203k miles, age and mileage related issues to long term parts are often forgotten about. Long out of warranty, did you check fuel pressure. Clogged fuel filter? Monitoring pressure while driving may reveal whether or not its on its last legs since no one can tell when a pump begins to fail intermittently.

One member heeded advice (higher mileage than yours), didn't notice fuel pressure issues first time around until it was suggested to leave the pressure gauge connected and check it the moment the engine randomly dies. He found the next check with the needle bouncing wildly. New pump fixed his problem.

How's compression?
...
VCX NANO
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