1971 Ford F350 sputters and pops while decelerating and also loud while accelerating. what could be the cause

Asked by Feb 17, 2015 at 01:32 PM

Question type: Maintenance & Repair

1971 Ford F350 custom with the 390 engine. just had the points and timing adjusted and
tuned. happened after a twenty mile freeway drive. I noticed the popping and sputtering
as I was exiting the freeway. Also, she seems to be operating fine just loud.

2 Answers

How old is muffler? It doesn't have a cat, so no worries there but sounds like a plain old worn out muffler. I have '76 with a 390 and have gone through maybe, geez I don't know maybe 8 mufflers and that is exactly what happens

1 of 1 people found this helpful.

Thinking back more like a dozen

1 of 1 people found this helpful.

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