a few questions
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Freshman User
Joined: Sep 2004
Posts: 38
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a few questions
is there suppose to be a ground from the block to the firewall?
my oil presure gauge goes to 0 after the truck warms up and is idling in drive so where is the sending unit located so i can change it to see if its the prob.
whats a norm for fuel milage at around 70 mph. ?
all input would be very very much appreciated!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
thanks in advance
my oil presure gauge goes to 0 after the truck warms up and is idling in drive so where is the sending unit located so i can change it to see if its the prob.
whats a norm for fuel milage at around 70 mph. ?
all input would be very very much appreciated!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
thanks in advance
Freshman User
Joined: Aug 2004
Posts: 34
Likes: 0
Had the same problem though intermittent. The flex cable and some of the ground wires were not in "prime condition". You should be able to see via an ohm meter that there is no resistance between the ground post and the firewall, paint removed,.
As for fuel consumption, this can vary based on your diff gears.
I have 3.55 so gas mileage is not to bad about 16mpg at 70.
As for fuel consumption, this can vary based on your diff gears.
I have 3.55 so gas mileage is not to bad about 16mpg at 70.
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
The firewall ground is on the pax head (rear faceing the firewall) it is a braided wire on mine. It is really there for radio interfearance grounding............... The main grounds are at the front lower corners of the block.
Tuned
Joined: Oct 2004
Posts: 300
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Cruise Control set at 70mph (about 2250rpm) --> 13mpg
Cruise Control set at 60mph (about 2000rpm) --> 16.5mpg
Cruise Control set at 55mph (about 1800rpm) --> 21.3mpg
94 F-250, factory turbo, stock tires, pulling small jet-ski on trailer & MC in bed. 4.10 gears, 4x4.
Cruise Control set at 60mph (about 2000rpm) --> 16.5mpg
Cruise Control set at 55mph (about 1800rpm) --> 21.3mpg
94 F-250, factory turbo, stock tires, pulling small jet-ski on trailer & MC in bed. 4.10 gears, 4x4.
Posting Guru
Joined: Sep 2002
Posts: 1,897
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From: Northeastern Pa - USA
I believe the sending unit for the oil pressure is located on the top of block, rear of the intake. there is flat space right on the top surface of the block in the trans tunnel. You would prob get a better look at it from beneath looking up over the bell housing.
Senior User
Joined: Nov 2004
Posts: 315
Likes: 0
The oil press sending unit should be on the back of the block, just in frony of the bell housing. If it is a turbo it is on the top of the turbo, there is a 'block' that has the sender in - oil for the turbo comes from the port in the block that non turbo has the oil press sender in. Put in a mechanical guage, do not rely on the factory "idiot" guages. MPG depends on how you drive, you should get at least 12 - 14.
