Gas mileage/common problems
Thread Starter
|
Junior User
Joined: Nov 2005
Posts: 72
Likes: 0
From: riverside
Gas mileage/common problems
I am looking to buy a diesel truck and I found one that agrees with my budget. Its a 1983 f250 4x4 w/ a 4 speed. Whats the common problems with this motor? What should I look at or be wary of? What kind of mileage can I expect with this kind of set up? 15ish?
Just sold my ranger (1991 4x4) so am new to the diesel forum. Hopefully will be a regular.
Just sold my ranger (1991 4x4) so am new to the diesel forum. Hopefully will be a regular.
Elder User
Joined: Aug 2005
Posts: 566
Likes: 3
From: New Jersey
Mileage varies greatly based on gear ratios, driving habits, etc. Mine is a 7.3 and has 3.55 gears, automatic transmission, 33 inch tires. I get average 16 mpg around town and 20 on the highway. I'm hoping to get another 2 mpg by changing to a K&N air filter and getting my exhaust opened up to 4". (Currently, it's 2", way too small IMHO). But I've seen postings in here of people lamenting 10 mpg, and sometimes worse.
Elder User
Joined: Mar 2006
Posts: 901
Likes: 0
From: North-Eastern, Ohio
Matt is right. It all depends on everything he said, but i think your driving habits is the best way to raise or lower your mileage. My F-350, 7.3L, 4.10, manual transmission gets about 13-15 mpg on the highway and about 10 when im towin my 5th wheel with anywhere from 10-15k lbs. (and when im driving like im in the craftsman truck series) lol.
But then again, mines a dually 4x4.
You dont have to worry about cavitation as much on the 6.9 as the 7.3 (b/c the 7.3 is the same block as the 6.9 except it it bored out more which leads to thinner walls).
Make sure you test your coolant with special strips that you can get at your internaitonal dealer.
The glowplug system on the 6.9 is a little hard to diagnos and most people switch to manual operated glowplugs by running a toggle switch to the controller.
Heres a link for the manual plugs: http://www.members.shaw.ca/k2pilot/G...%20diagram.jpg
How many miles are on it? The early diesels can last up to 400k miles to my knowlege.
They are very durable and reliable.
Hope this helps ya and this place is the ultimate place for diesel know-how.
But then again, mines a dually 4x4.
You dont have to worry about cavitation as much on the 6.9 as the 7.3 (b/c the 7.3 is the same block as the 6.9 except it it bored out more which leads to thinner walls).
Make sure you test your coolant with special strips that you can get at your internaitonal dealer.
The glowplug system on the 6.9 is a little hard to diagnos and most people switch to manual operated glowplugs by running a toggle switch to the controller.
Heres a link for the manual plugs: http://www.members.shaw.ca/k2pilot/G...%20diagram.jpg
How many miles are on it? The early diesels can last up to 400k miles to my knowlege.
They are very durable and reliable.
Hope this helps ya and this place is the ultimate place for diesel know-how.
Thread
Thread Starter
Forum
Replies
Last Post
cartmanea
6.0L Power Stroke Diesel
6
May 30, 2009 08:26 AM
viking79
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
5
Mar 28, 2007 08:16 PM
GarrettRacing1
1999 - 2003 7.3L Power Stroke Diesel
15
Nov 26, 2002 08:21 AM
