intermitant miss
Thread Starter
Racer
Joined: Apr 2007
Posts: 275
Likes: 1
From: Lafayette/marquez La/tx
intermitant miss
I know tis prolly ain't the right forum. But there seems to be alot if knowlege here. So I'll ask my question. I have a 2000 C3500 chevy truck with a 454 multi port fuel injection. It has started to miss and kinda buck but only sometimes. sometimes on take off sometimes at highway speeds sometimes not at all. I changed the plugs,wires,dist. cap and rotor. Ran good for couple of weeks the started missing again. Checked fuel pressure 60psi. I was thinking maybe the coil, ignition control module or cam position sensor. Any ideas or direct me to someone who may know? It is not setting any codes. I have 122000 miles on it
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
I had a problem with a coil- it was the HEI remote mounted coil- it would fire theu the insulation and into the core so you couldn't see it. You could hear it- when the engine would stumble you could hear the snap.
Put a little dish soap into a spray water bottle and soak the secondary side. Coil, wires, cap, everything. The soap slows the evaporation rate.. Bet you find it.
Put a little dish soap into a spray water bottle and soak the secondary side. Coil, wires, cap, everything. The soap slows the evaporation rate.. Bet you find it.
CF Community Team
Joined: Oct 2004
Posts: 19,354
Likes: 5,240
From: Cape Cod, Mass.
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Fuel filter perhaps.
