what's the deal...it's scaring me

[Archive]

Today on I-70 I attempted to pass up this chev and all of a sudden my truck had no forward power... the stereo was blaring, it was raining... so I started to pull over on the shoulder... didn't have time to check any gauges as there was quite a bit of traffic.
I was slowing down, no forward power, I downshifted into 4th and low & behold I had my power back(in all gears).
It's done this before; twice last winter... exact same scenario, I give the pedal some loud and have no power at all... I downshift and it's all back.
I had a pulsing/missing idle problem before, some of you may have read my post... that cleared itself after buying diesel from a certain truckstop one of the Ford boys suggested.
any ideas?
I've tried to recreate the problem... It won't do it... only seems to do it when I'm in a hairy passing situation???
lift pump? bad fuel?(couldn't make it to the truckstop before work this morning so I had to buy fuel at the place I used to buy fuel when i had the idle pulse)bad injector pump?
bad injector? air in the injector line?
my water separator/fuel filter has 800 miles on it... I drive the truck everyday... ambient temp was 46 F
any ideas?
thx.
joe

 

[Archive]

Yeah, it wouldn't hurt to check the 12V power connections to the pump to see that they make good contact. I had a similar problem.

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• '93 250 LE 4x4 5spd 4:10 Pwr win/loc/mir,cruise,dual 5" chrome stacks,12cm² turbo,PW injectors,K&N,pyro/boost,US Gear E-Brake,Fuller Roadranger shifter, diamond plate tool box, CB, 16x10" AR rims, 285/75/16 Bf goodrich, . "wirenut_21529" on Yahoo Messenger
• '96 Ford B-Series school bus (5. 9 Cummins!)I'm gonna Bomb it!
• '94 GMC 2500 6. 5L Turbo

PICTURES.

 

[Archive]

Hey Burkey,
the scotch lock on the bottom rear of my injector pump is loose... as a matter of fact,
knowing my father that's super 33+ holding the scotch lock on... gonna fix that tommorow. . I hope it's the problem.
thx

 

[Archive]

I had experienced this with a CAT. It would cut out on a pull up a hill. It turned out to be the solenoid in the pump for the ignition switch. That wire may be your problem.

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90 W250, 5-speed, isspro gauges, 16 cm2, K&N, Borgeson shaft, JRE 3" exhaust

 

[Archive]

Scotch-lock... ?Aaaiiieee! Remove it and put a real connector there, with solder and shrink wrap!

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1993 W350 Club Cab 5 speed dually. P. W. injectors, Banks stinger, pyro, boost and tach, 22 lbs of boost, and rising... Hey, 'stroke this buddy!

 

[Archive]

Wow, thank God somebody reminded me, this problem also happened to me on a hill under full throttle, everything went dead for a second but thankfully came right back on. Happened twice right before Y2K. . i thought i was just the "BUG" hitting early. . haha. Well, at least it hasn't happened again. .

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Greg's 1993 D250 4x2. . 5-speed. . extended cab. . longbed. . bright white. . tinted windows. . 4-inch pipe no muffler. . K&N air filter. . 138,000+ miles. . "The Phantom"

 

[Archive]

Originally posted by joesoot:
Today on I-70 I attempted to pass up this chev and all of a sudden my truck had no forward power... the stereo was blaring, it was raining... so I started to pull over on the shoulder... didn't have time to check any gauges as there was quite a bit of traffic.
I was slowing down, no forward power, I downshifted into 4th and low & behold I had my power back(in all gears).
It's done this before; twice last winter... exact same scenario, I give the pedal some loud and have no power at all... I downshift and it's all back.
I had a pulsing/missing idle problem before, some of you may have read my post... that cleared itself after buying diesel from a certain truckstop one of the Ford boys suggested.
any ideas?
I've tried to recreate the problem... It won't do it... only seems to do it when I'm in a hairy passing situation???
lift pump? bad fuel?(couldn't make it to the truckstop before work this morning so I had to buy fuel at the place I used to buy fuel when i had the idle pulse)bad injector pump?
bad injector? air in the injector line?
my water separator/fuel filter has 800 miles on it... I drive the truck everyday... ambient temp was 46 F
any ideas?
thx.
joe

 

[Archive]

Originally posted by mossy jaw:

I KEPT LOSING POWER BUT WOULD GET IT BACK ALMOST INSTANTLY,THIS WAS HAPPENING OVER A PERIOD OF A YEAR. IN 1998 I HAD TOTAL SHUT DOWN HALFWAY UP A MNT OUTSIDE CONGRESS,AZ. the culprit was the fuel solenoid valve Several times it wouldn't crank but never tied it to the solenoid valve. (1993 w250 dually,12spd transmission(4spd main,3spd aux,new process boxs,3. 5 s/s exhaust,rhino liner,110gal aux fuel tank,jacobs exhaust brk,air accuated,Bostrum air ride seats ,pre lube pmp 3;54 gear ratio,added leafs in all springs,ex cab,167k miles.

 

[Archive]

the connector to the injector pump is good now...
could this problem I've been plagued with have anything to do with the fact that sometimes i have to pull my seat forward and bang the clutch pedal to the floor to get my truck to start???

 

[Archive]

Off the top of my head I would say no only because that closes the circuit for the starter to engage. But I've been wrong before.

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90 W250, 5-speed, isspro gauges, 16 cm2, K&N, Borgeson shaft, JRE 3" exhaust

 

[Archive]

I'm seeing some similar issues with my 1992 D250. Can someone offer some coaching on the selonoid?

Is this a relatively easy part to replace? Is there a good online source for one of these - or is NAPA or the Dodge dealer the way to go for this part. Any idea on cost of this part?

I suspect my intermittent idle problems, and intermittent power loss/"missing" issues might be a result of this.

Thanks,
Jon

 

[Archive]

Joe,
Do you have an exhaust brake on your truck? If you do, how does it activate? Have been wondering about your problem since you first posted it. I have a US Gear brake unit that has a pad on the throttle pedal. If the foot is lifted, the brake activates. Was wondering what might happen if there was a problem with this pressure sensitive pad.

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Stan
93 2WD extended cab, Banks Power Pack, K&N Air Filter, PW Injectors,Auto w/4. 10 rear with limited slip, US Gear Exhaust Brake, 31/2" Exhaust, 5K air bags, Boost/Pyro/Tach Gauges, Green/Silver, 146K

 

[Archive]

Originally posted by paccool:
Joe,
Do you have an exhaust brake on your truck? If you do, how does it activate? Have been wondering about your problem since you first posted it. I have a US Gear brake unit that has a pad on the throttle pedal. If the foot is lifted, the brake activates. Was wondering what might happen if there was a problem with this pressure sensitive pad.

no exhaust brake...
1990 w250 reg cab 151,000miles... 16cm housing, adjusted pump... 3" w/walker flow thru muff, nv4500...
only happens when i hammer it.

 

[Archive]

Gas cap can be an issue, or at least magnify whatever fuel delivery problem you are having.

A weak lift pump, or a leak in the line from tank to lift pump, can shut your truck down while towing or giving it **** uphill when demand for fuel is maxed.

I have a cap that seems to not be venting - creates a vacuum over time. I've had the truck run very rough, lose idle, and even shut down completely while towing. Every time loosening the gas gap, hearing it suck air in and even out the pressure, has allowed me back on the road, or to get idle back. My case I suspect I have an air leak in the line, so eventually the lift pump finds it easier to pull the air than it is to pull fuel out of the vacuum in the tank.

I may just have the wrong gas cap on it for the truck, a previous owner might have swapped it for a non-venting cap that might be all the trouble.

Just rambling on what I have run into,
jon.