Gas Milage
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New User
Joined: Feb 2004
Posts: 4
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Gas Milage
I was just curious as to if I should be expecting more than I'm getting.I have an 87 B2 and it only takes me like $13 to fill up the tank.Now I know I should not expect a lot out of that but I can run anywhere from 140 to 175 miles depending on if I'm on the highway or just driving around town.I was hoping that my gas tank was bigger than that but I don't know? If there is something I need to do please let me know.
Senior User
Joined: Feb 2004
Posts: 212
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From: GOING BACK TO TEXAS!!!
You should have the 23 gallon tank. You are probably running into the same problem that I have. I'll fill my tank up on empty by the gauge, and that is only 12 gallons. You can replace the float in the tank, but that requires dropping the tank.
If you milage isn't around 18-21 mpg, you need to get the codes from your vehicle. Most people here say the problem is usually your O2 sensor for poor gas milage.
If you don't have access to a code reader, look for the simple problems first. A partially frozen brake, underinflated tires, bad shocks, and a list of other things should be checked first. Go get the Haynes guide for your car. Best thing you could do to start.
If you milage isn't around 18-21 mpg, you need to get the codes from your vehicle. Most people here say the problem is usually your O2 sensor for poor gas milage.
If you don't have access to a code reader, look for the simple problems first. A partially frozen brake, underinflated tires, bad shocks, and a list of other things should be checked first. Go get the Haynes guide for your car. Best thing you could do to start.
New User
Joined: Feb 2004
Posts: 9
Likes: 0
From: WI
Fuel Guage
I have a 88 Bronco II - just replaced the gas tank, both fuel pumps, and fuel lines + filter. The back fuelpump came with the float and sender unit and the guage is still not accurate. After $10 still shows empty on a 23galon tank. If driven stays on full for a long time and then drops like a brick.
Worried me at first now I just live with it.
Worried me at first now I just live with it.
New User
Joined: Feb 2004
Posts: 9
Likes: 0
From: WI
Fuel guage
PS. If you are thinking of dropping the tank to relace the float and you love in a snow area with salt chances are you wont get the old punp with float out they rust in solid thats is what happened to me.
Elder User
Joined: Feb 2004
Posts: 855
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From: Ocean Park WA
I had the same problem and additionally a stalling problem. I finally gave up and bought a new Carter sending unit with the low pressure pump, repaired the cut power wire to the pump (found it when I got the tank out) and in some ways it's good and some it's bad but I had to fill it yesterday from just above the empty mark and 20.3 gallons. It's loads of fun to get the skid plate out and normally there's about another 8 gallons of gas even when it reads empty.
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Elder User
Joined: Aug 2000
Posts: 763
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From: home
fuel pump & flaoat access
Two years ago I had some fuel pump problems with a bad EEC relay. To gain accesss to the fuel pump I cut a small aprox 5 inches square holl above the fuel pump. I made a cover plate for the floor with the same bends & used silicone in metal screws to seal the cover down. Works great & gives me easy access to the fuel pump & float.Took about 30 minutes to cut the hole with a drimel & tin snips. The cover took about & hour. Less time than to drain drop & raise the tank. I got this idea from a 50's model car i have that had the same set up from the factory.
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New User
Joined: Nov 2003
Posts: 10
Likes: 0
From: colorado
My mileage has fallen a bit too, i'm going to check on mine this weekend, the fpr and such. I just checked my gauge comparison. I filled 18.4 gallons at empty. Converted into 16.8 mpg. I guess it's not terrible, but i'd like it back to 22. I also have a weird starting problem...It'll work on the 1st try, but only when it's hot. I pump the gas and it goes. Also, when it's cold, the battery will be like dead after 3 or 4 starting tries, but i jump it and it heats up...starting fine then. I think it might be my fuel pump...It seems like theres no gas there or something....The starters new, the flywheel's new. ANY guesses? 1987 b2.
thanks and gl to all with the gas thing
thanks and gl to all with the gas thing
Posting Guru
Joined: Jul 2003
Posts: 1,028
Likes: 1
From: San Antonio
I got 14 mpg with my 1987 b2 2wd ,but I had 6 kicker 15"s bumping at all times. I figured I could drive 300miles before I needed gas. I would think you could get 22 highway and 17 in town for normal gas mileage.
Junior User
Joined: Sep 2001
Posts: 50
Likes: 0
From: Northern Virginia
Gas Problems
Don't forget the 87, and some others, had two fuel filters. if they are OK, check your fuel preasure at the rail. Service manual has the specs. I get 17-18 around town and 22-23 on the highway.
Good luck!
Good luck!
Freshman User
Joined: Aug 2003
Posts: 32
Likes: 0
From: Stamford, CT
BroncII: Does the 87 have 2 fuel filters? I am aware about the in-line filter close to the fuel thank; I bought it at autozone ($8) but I give up the idea to replace it (it looks to complicate). but, If there is a regular filter under the hood I would like to know where is it. Is it easy to install? The book that I have doesn't say a thing about it.
Junior User
Joined: Sep 2001
Posts: 50
Likes: 0
From: Northern Virginia
Fuel Filter
Yes, there are two filters and two fuel pumps. The front one in the frame rail (just in front of the driver seat,) and the rear one looks more like an oil filter and is back by the tank on the same side. The front filter requires a special tool that releases the hose fittings, but isn't dificult to remove. I have pictures on my web site if you want to look at it. The rear filter serves two purposes, one is a resevoir to help keep the fuel pump from losing it's prime and the second is a sediment filter. There is a paper filter that installs in the unit. This filter is a bit of a pain to work on. It unscrews and has a very thin Oring that should be replaced when you change the filter. The trick is getting the Oring to stay in place when you try to re-install the cover. I finally used a thin layer of petroleum jelly to hold it in place and that worked great. The new filter should come with the new Oring. (Make sure you check when you buy the filter, as I went through three boxes off the shelf before I found one that had both.)
Good luck!
Good luck!
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