what causes engine to misfire and backfire losing power

Asked by May 03, 2017 at 07:11 PM about the 1973 Ford F-100

Question type: Maintenance & Repair

3 Answers

73,045

A bad fuel pump, or the carburetor is flooding out.

98,375

1973 last of the point and condenser ignition system if it hasn't already been modded. Replace the point and condenser, check the breaker plate for any side to side movement, if it has some replace the breaker plate, reset point gap, start engine and check the dwell.

50,745

If the above doesn't work, run a compression test to see if there is a problem with the timing chain and cam timing.

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