Sputtering 6 Banger

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Apr 23, 2005 | 10:27 AM

jenral

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From: Prince George B.C.

Sputtering 6 Banger

Ok lets try this again. I hope this is an easy fix but ........here we go. My 84 300 cid I noticed over the last few days sputters and all but dies when I go up a hill on the highway. It starts fine, drives fine and when I hit the gas she accelerats fine. Till I get to a hill at highway speeds. It's timed right, at least at idle, and the fuel filter is less than a year old ( I'm gonna replace it any way ). It does'nt matter if I'm on the front or rear tank either. Once I hit the top of the hill and back on level road, after driving a kilometer or 2 everything is back to normal. Any help would be greatly appreciated...thanks

Apr 23, 2005 | 06:03 PM

Franklin2

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From: Virginia

Quote:

fuel filter is less than a year old ( I'm gonna replace it any way ).

You are on the right track. It does sound like a fuel starvation problem. When you quickly accelerate, you are using fuel stored in the carb. But when you pull a long hill, the reserve in the carb is used up and is not being replaced quickly enough. Check:

Fuel filter
Fuel pump
sock on the pickup in the gas tank.

Apr 23, 2005 | 08:10 PM

jenral

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From: Prince George B.C.

Darn it... I forgot all about the sock...thanks for the reminder.

Apr 23, 2005 | 11:38 PM

Chiefrider007

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From: Southern IL

Sock would probably show up when you run under a low fuel condition, gas sloshes and picks up junk etc. Fist thing is how old are the plugs, wires, cap and rotor? Then how old is the Control Module? My guess is that your ignition system is at the beginning stage of a malfunction and any one of the before mentioned items can cause the same problems.
Good Luck....

Apr 24, 2005 | 09:19 PM

jenral

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From: Prince George B.C.

Turns out the fuel filter was so plugged I could not even blow thru it. I gues I should have mentioned that I had givin the truck a complete tune up 3 weeks ago. New plugs, wires, rotor, and cap. The coil is less than a year old and the Distributor advance is also only about 8 months old plus she was timed reasonably close. But it's all better now with that 3 dollar filter. As far as the module goes, I have no idea how old it is, since I've only had the truck under a year. Thanks for all the help guys.

Apr 25, 2005 | 08:34 AM

ronclark

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From: Fleming Ga

If you had a stopped up fuel filter in less than a year, Then I would be concerned about trash (possibly rust) in the tanks causing the fuel filter to stop up. You might want to pull the tanks sometime when you have time and clean out before the problem shows up again.

Apr 25, 2005 | 06:18 PM

f'n250

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carry a spare fuel filter so you can change it wherever you are. sound like your tanks are full of crap as mentioned. you've had it less than a year, did it sit unused before you drove it? If yes it may clear itself after a filter or two.