carb backfire
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carb backfire
Hey, got another one for ya, ever since I rebuilt the carb and installed it put new wires,plugs ,cap an rotor on, when in drive and try to give it gas I get a popping or backfire thru the carb, what could be causing this? thanks 82 f-150 302 eng.
Last edited by sams123; Apr 4, 2012 at 08:20 PM. Reason: forgot something
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Joined: Oct 2010
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From: Missouri
-Does it run fine after getting going or can you not get going? If it is fine after you are moving then it could be a problem with the accelerator pump.
-Did you use the correct firing order when chainging the wires? The 302HO/351 and standard 302 firing order get mixed up sometimes. If the cam has been changed then lots of times the 302 will have a 351 firing order.
-Make sure the distributor is tight, if it isn't you may have bumped the timing out of whack.
-Look for any vacuum lines not correctly connected.
-Did you use the correct firing order when chainging the wires? The 302HO/351 and standard 302 firing order get mixed up sometimes. If the cam has been changed then lots of times the 302 will have a 351 firing order.
-Make sure the distributor is tight, if it isn't you may have bumped the timing out of whack.
-Look for any vacuum lines not correctly connected.
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Joined: Apr 2012
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carb backfire
OK I'm back, been out of commisson last few days, thanks for the advice ya sent, I ended up checking the spark plug wires and found the #7 and #8 wires were crossed changed them now the truck is running way better now I just have to re adjust the carb mixtures and the timing. Thanks
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