1owner
12/22/2006 6:10:03 PM
Greetings & happy holidays to all.
I have a problem w/ my 91 B2200 that hopefully can be diagnosed by someone on this site.
Today, while attempting to accelerate from a stop warm, the truck "stumbled", then caught. It proceeded to quit running a few times when decelerating// coasting under 1200 revs, but would restart with little trouble. After sitting awhile, I started her up and she wouldn't run between 500-1100 revs. Anything over 1500 was fine. Changed the plugs, started her up and she quit running after 10 minutes on her own. Tried again w/ same results. 170K on the clock. Automatic trans. Any help appreciated as I love this thing to death.
1owner
12/23/2006 4:00:40 PM
Solved myself. Sediment in tank.
Singing Preacher
12/29/2006 1:58:35 PM
Thanks for your post 1owner. You may have answered the problem I have been having. I will check that out on my 1990 B2200. I only have about 2500 milles on my rebuild.
1owner
1/2/2007 1:04:27 PM
Still doing the same thing intermitantly. Could it be some deceleration device?
monstermazda
1/2/2007 5:34:10 PM
did you replace all filters?
monstermazda
1/2/2007 5:34:34 PM
youll also need to flush out the lines
1owner
1/3/2007 12:23:41 AM
I think there's only one fuel filter on this truck - right at the gas tank. I'm not sure how you flush the lines on it. Any detailed info would be appreciated. B.t.w.- Could the idle circuit have dirt lodged in it?
monstermazda
1/3/2007 2:26:44 AM
on my 86 and on my 89 there is a canister on the passenger side firewall
1owner
1/7/2007 5:20:37 PM
Still trying to diagnose...
monstermazda
1/7/2007 8:55:03 PM
to flush disconnect the line at both ends, and flush with gas, go from the engine back, with gravity, catch all the fluid to see what comes out. did you look for the filter on the passenger side firewall?
1owner
1/9/2007 10:50:06 PM
Thanks for all the advice, but I'm planning on going after a fuel cutoff solenoid or a deceleration solenoid which I'll bet are causing this b.s. Wow! Those are some engineering marvels there, huh?
Singing Preacher
1/12/2007 11:30:07 PM
My 1990 B2200 acts simillar to what yours is. It will take off just fine, but going down the road it will act as if you turned off the ignition, but picks right back up. I checked my fuel tank and ended up changing my fuel pump, which did not help my problem. Please let me know what you find on yours. I am at a loss right now. I believe it to be something electronic, but have no clue.
lithopro
2/8/2007 11:50:41 AM
The fuel filter on these trucks if they're fuel injected is on the firewall passenger side. As for your stumbling problem, mine didn't stumbler after a while, it would run and die and then NO spark. I eventually traced it to a leaking capacitor on the ECM board that shorts other circuits on the board. Here's a link that help me with a visual.
http://www.avproecm.com/index.htm I didn't use them for the repair job and instead went o another repairman on Ebay.
1owner
4/14/2007 9:56:36 AM
UPDATE: Not a fuel related issue at all. New pickup coil and ignitor installed. Runs as new. Please take note.
Cusser
4/14/2007 12:14:40 PM
1owner - how did you or your mechanic diagnose this? I had same issue 1.5 years ago, my mechanic at first thought carburetion/computer but his partner guessed ignotor & pickup, even though the symptoms were not those typical failures (mine would stall after 45 seconds of idling). He took the distributor off his son's B2200 and tried it on mine to diagnose, because those parts are pretty expensive (and he didn't want to stick me with $$$ that didn't help me).
