Problem areas on a 300
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Posting Guru
Joined: Oct 2003
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Problem areas on a 300
I was wanting to hear everyone's experiences with the motor like wear points, derability storys, and the general thought of the 300.
I'll start
I have a lifter tick but motor runs good other wise
Gas milage sucks 8mpg hiway pulling a 5k trailer
Can beat the he!! out of it even with the tick it doesn't quit.
Pulls MASSIVE loads that most would say is MDT range but my 78 f250 gets them done
Pulls stuck friends out ALL the time and has not had a problem
can drag chevy 350 2500's without even touching the gas (6.69*3.73=LOW gear)
Slower than Christmas but gets me there EVERY time
Dustin
I'll start
I have a lifter tick but motor runs good other wise
Gas milage sucks 8mpg hiway pulling a 5k trailer
Can beat the he!! out of it even with the tick it doesn't quit.
Pulls MASSIVE loads that most would say is MDT range but my 78 f250 gets them done
Pulls stuck friends out ALL the time and has not had a problem
can drag chevy 350 2500's without even touching the gas (6.69*3.73=LOW gear)
Slower than Christmas but gets me there EVERY time
Dustin
Freshman User
Joined: Mar 2005
Posts: 37
Likes: 0
I really haven't found anything wrong with the 300. I'm running a 300B, and I run it HARD. Believe me, it has seen its fair share of mud, and has only failed me once. When it failed, it happened when the ignition control module melted down.
However, as far as mechanical parts go, the 300's wide tolerances and well-built parts will keep going for years and years. (In MY experiance, at least.)
However, as far as mechanical parts go, the 300's wide tolerances and well-built parts will keep going for years and years. (In MY experiance, at least.)
Senior User
Joined: Mar 2005
Posts: 185
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From: Indiana
Originally Posted by oldhalftons
The intake/exhaust manifold bolts like to back out over time.
The 4 screws that hold the carb together loosen up over time.
Pretty short list really
The 4 screws that hold the carb together loosen up over time.
Pretty short list really
besides that, I haven't found anything really wrong with mine, it's got 168,000 miles on it, and I've only had it for a month, but it's pretty good overall...
Posting Guru
Joined: Nov 2004
Posts: 1,137
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From: Asheville, NC
Fords are supposed to leak. They are Fords. My Ford never let me down in 300,000 miles.
Mine had the loose bolts in the manifold, and the carb bolts.
My starter has lock washers under the bolt heads.
1984 300-6. Had oil changes every 3000 miles. Totally reliable.
Mine had the loose bolts in the manifold, and the carb bolts.
My starter has lock washers under the bolt heads.
1984 300-6. Had oil changes every 3000 miles. Totally reliable.
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Posting Guru
Joined: Jan 2005
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From: the beaches of florida
one time when i was mudding i noticed that my truck was hauling *** and i was barely touching the gas, i wsa doing crazy slides and stuff and didnt ry to slow down, after a while when i thought ok i dont need to blow this motor, i went to slow down but even with my foot off the pedal it was still flying. turned out one of the hoses was stuck inbetween the carb the whole time. still runs good and havnt seen a problem and stuff like that keeps happening to the motor.
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Senior User
Joined: Feb 2005
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From: Timmins,Ontario,Canada
I used to redline mine alot like going 100 km/hr in third up a 8% slope tryin to pass a transport (stupid northern ontario highways), whil towing a box full of firewood. It sarting to take its toll though, bit of lifter noise and low oil pressure. But it sounds mean. I know if i had 302 and beat it up like my 300, it would have been in the scrapyard many moons ago.
Postmaster
Joined: Mar 2002
Posts: 3,545
Likes: 4
From: Coal Region
EFI manifolds sometimes warp and crack
manifold bolts loosen over time
lifter tick
side cover leaks
thats about it any thats nothing when u think about it. the bolts loosening and manifld warp/cracking is commen on all vehicles. arcitecturally they are uber stout.
manifold bolts loosen over time
lifter tick
side cover leaks
thats about it any thats nothing when u think about it. the bolts loosening and manifld warp/cracking is commen on all vehicles. arcitecturally they are uber stout.
New User
Joined: Apr 2005
Posts: 12
Likes: 0
Okay, now I like my truck alot, but I can't get it to stop shaking at the idle in drive or reverse. I have replaced the starter, the carb, the roter and cap, wires, plugs and the ignition module. Once you start going, man it will run like a rapped apa, but when you come to a stop light, hang it up, it shakes like it is a drag car running off of jet fuel. I thought it would have been the valves or the rockers or push rods, but it doesn't do it in park or Netural. The engine is still combusting and releasing gases in park and in netural so if one of those wasn't working it should also shake then. Right now I am troubleshooting my vacume system, but since these old trucks are vacume kings it is wearing me out. Any ideas would help or if anyone has this problem or has had this problem let me know please. Thanks
Greg Gidding
Warrant Officer US Army
Greg Gidding
Warrant Officer US Army
Posting Guru
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From: Bored town OH
Originally Posted by Holmesuser01
Fords are supposed to leak. They are Fords. My Ford never let me down in 300,000 miles.
Mine had the loose bolts in the manifold, and the carb bolts.
My starter has lock washers under the bolt heads.
1984 300-6. Had oil changes every 3000 miles. Totally reliable.
Mine had the loose bolts in the manifold, and the carb bolts.
My starter has lock washers under the bolt heads.
1984 300-6. Had oil changes every 3000 miles. Totally reliable.
