I drive this car on a mail route. About once a week it will start sputtering and chattering the valves and jerking then dies. It will start again but dies as soon as it's put in gear unless you wait a few minutes. It does this in the same spots on the route every time it happens. Please advise. Thank you.
How long since a tune up? Definitely add some fuel injector cleaner to the gas tank...maybe 2 bottles...I prefer Luca Oil injector cleaner...Walmart sells this the cheapest...also sludge in tank? Add a bottle of HEET to the gas tank to help dry up moisture,,,water...Change air filter and clean out (spray) throttle body...near the air filter inlet...also spray out mass air flow sensor...be sure to use MASS Air flow sensor spray only...does not damage the sensor...better mileage, smooth idle...hope this helps.
Changed spark plugs and all coil packs recently also have used fuel injector cleaner recently. Seems like something magnetic to me since this occurs in the same spots on my route.
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