Missing Miss.....
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Junior User
Joined: Nov 2000
Posts: 95
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From: Birdsboro Good ol' U.S.A.!
Missing Miss.....
My 79 Shortbed has a miss in it somewhere, cant seem to nail it. Actually im not totally positive that its a miss, but under load at about 1200 to 2000 rpm it shakes really bad, and throuhgout the rpm range it lacks torque. I know the 351m's and 400's enough to know that you shouldnt have to downshift into third from fourth the make it up a rinky dink hill. Also starting out in second you gotta beat it or itll stall. I've had 3 different carbs on it, new plat. plugs, dist. cap. rotor, air filter, and i run it on 91 octane. It has Accel plug wires on it that are about 2 yrs old. I cant seem to find any vac leaks or anything unusual. Please help me out before I get a little temper wild. Thanks, Mike
________________________________________
It's not what you buy, it's what you build.
1996 Explorer, minor detailing
1979 F150 Shortbox 351M 4 spd. 4x4
1978 F250 Supercab 351M Big cam 30k miles
1977 F150 351M 4spd 4x4 4" lift outrageous cam and a bunch of other goodies
http://ourworld-top.cs.com/KrystalMeth2000/index.htm
________________________________________
It's not what you buy, it's what you build.
1996 Explorer, minor detailing
1979 F150 Shortbox 351M 4 spd. 4x4
1978 F250 Supercab 351M Big cam 30k miles
1977 F150 351M 4spd 4x4 4" lift outrageous cam and a bunch of other goodies
http://ourworld-top.cs.com/KrystalMeth2000/index.htm
Lead Driver
Joined: Nov 2000
Posts: 6,636
Likes: 349
From: Albuquerque
Missing Miss.....
Maybe the EGR plate under the carb is eaten up inside and leaking vacuum.
1977 Ford F-100
400m/c6/4:11/Gear Vender O.D.
Crane hydralic roller, forged, ported polished,Deamon,Edlebrock, yada, yada, yada
280,000 miles
Stock on the outside
modified/rebuilt everything
1977 Ford F-100
400m/c6/4:11/Gear Vender O.D.
Crane hydralic roller, forged, ported polished,Deamon,Edlebrock, yada, yada, yada
280,000 miles
Stock on the outside
modified/rebuilt everything
Thread Starter
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Junior User
Joined: Nov 2000
Posts: 95
Likes: 0
From: Birdsboro Good ol' U.S.A.!
Missing Miss.....
Well I tested all of my plug wires everything seems fine and dandy, my EGR plate is all good, I just had that off and cleaned it up and eliminated the EGR valve and slapped on a plate. So I think a compression test is coming next. If that doesnt bring up anything bad ill have to get myself a vac gauge. I dont know why I bother though, another motor is goin in next week anyways....yeah well. It'll make me feel better to hear it run right one time. Thanks guys.
________________________________________
It's not what you buy, it's what you build.
1996 Explorer, minor detailing
1979 F150 Shortbox 351M 4 spd. 4x4
1978 F250 Supercab 351M Big cam 30k miles
1977 F150 351M 4spd 4x4 4" lift outrageous cam and a bunch of other goodies
http://ourworld-top.cs.com/KrystalMeth2000/index.htm
________________________________________
It's not what you buy, it's what you build.
1996 Explorer, minor detailing
1979 F150 Shortbox 351M 4 spd. 4x4
1978 F250 Supercab 351M Big cam 30k miles
1977 F150 351M 4spd 4x4 4" lift outrageous cam and a bunch of other goodies
http://ourworld-top.cs.com/KrystalMeth2000/index.htm
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