re 90 d150 3.9l stalling and flooding

How the engine works

Moderators: Greenleaf, KTA, BC847, Richie O

re 90 d150 3.9l stalling and flooding

Postby imtonydillard » Sun Sep 16, 2018 9:59 am

My issue is my truck is 9 times out of 10 when I come to a stop. Sometimes I can get it to start immediately. Most of the time it take 5+ minutes and smells like it's flooded. BTW, this mostly happens when my truck is near empty. Not so likely to happen when i have a 1/2 tank or more of gas. Also, I parked uphill the other day and had a real hard time starting it. I put it in neutral and rolled it to as close as possible to level ground and got it to start. There's also been times when it stalled before I came to a full stop and I tried to roll start and no go.

My vac lines are all good. My throttle body has been rebuilt and I also have a new EGR valve.

Most of my research points to the fuel pump as the culprit. What are your thoughts? I went ahead and bought a new fuel pump but can find where the existing one is to replace it. HEEELLLPPP please. My Haynes manual is failing me.
imtonydillard
fuel pin?
 
Posts: 12
Joined: Thu Jul 12, 2018 12:15 pm

Re: re 90 d150 3.9l stalling and flooding

Postby Remps » Mon Sep 17, 2018 5:26 am

Fuel pump is in the fuel tank, gona have to drop the tank to change it.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
User avatar
Remps
14mm rotor
 
Posts: 1116
Joined: Sun May 03, 2009 12:57 am
Location: Saskatchewan

Re: re 90 d150 3.9l stalling and flooding

Postby imtonydillard » Thu Sep 20, 2018 5:28 pm

I dropped the tank and changed the fuel pump. Put it back together can't get it to start. Thoughts?
imtonydillard
fuel pin?
 
Posts: 12
Joined: Thu Jul 12, 2018 12:15 pm
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Donkey Kong » Thu Sep 20, 2018 6:57 pm

Clogged fuel filter prior to carb or TBI?
Darth Cummins 93 CC W250 NV4500 HX35 350hp 37s 1.5T leafs...its stiff
User avatar
Donkey Kong
fuel screw!!!!
 
Posts: 48
Joined: Wed May 23, 2018 11:18 am
Location: SF Bay Area
Top

Re: re 90 d150 3.9l stalling and flooding

Postby ellis93 » Fri Sep 21, 2018 3:24 am

If you could at least crank it before and you changed the pump,and now it won't,can't be much else than either a poor connection on the pump plug or a turd pump. Where did your pump come from?
With anything electrical......if you go cheap you get Schit parts.
Fuel pumps are one of the areas of part categories that is best to buy once,cry once. Buy the best you can.
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
User avatar
ellis93
14mm rotor
 
Posts: 7747
Joined: Wed Feb 17, 2010 3:16 pm
Location: lucedale,mississippi
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Remps » Fri Sep 21, 2018 5:50 am

Try priming it with some gas, or a spray of wd40. Although you shouldn't have to with a new pump. I'd change any and all filters/screens as well.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
User avatar
Remps
14mm rotor
 
Posts: 1116
Joined: Sun May 03, 2009 12:57 am
Location: Saskatchewan
Top

Re: re 90 d150 3.9l stalling and flooding

Postby imtonydillard » Fri Sep 21, 2018 7:15 am

Do you mind coaching me how to prime the new pump?
imtonydillard
fuel pin?
 
Posts: 12
Joined: Thu Jul 12, 2018 12:15 pm
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Donkey Kong » Fri Sep 21, 2018 12:53 pm

I could be wrong, but usually there will be a 10-15 second priming timer energized when the key is turned ON. You should hear the pump kick on. I would disconnect the fuel line in front of the filter, turn the key on and off (but dont crank engine)about 10 times or until fuel starts coming out of the line. Then hook it back up and crank away.
Darth Cummins 93 CC W250 NV4500 HX35 350hp 37s 1.5T leafs...its stiff
User avatar
Donkey Kong
fuel screw!!!!
 
Posts: 48
Joined: Wed May 23, 2018 11:18 am
Location: SF Bay Area
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Remps » Sat Sep 22, 2018 7:12 am

I meant prime it by pouring a little fuel or a spray of wd40 right into the throttle body and see if it fires up. Wouldn't hurt to crack a line and cycle the key as just mentioned and see if you get fuel either.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
User avatar
Remps
14mm rotor
 
Posts: 1116
Joined: Sun May 03, 2009 12:57 am
Location: Saskatchewan
Top

Re: re 90 d150 3.9l stalling and flooding (SOLVED)

Postby imtonydillard » Sun Sep 23, 2018 12:15 pm

I bought a new fuel pump from NAPA to replace the new fuel pump from Auto Zone and installed it. I primed the throttle body and it started first try. Thanks everyone for your help on this.
imtonydillard
fuel pin?
 
Posts: 12
Joined: Thu Jul 12, 2018 12:15 pm
Top

Re: re 90 d150 3.9l stalling and flooding

Postby PToombs » Sun Sep 23, 2018 4:29 pm

This is why I don't have gassers any more! :lol:
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11258
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Donkey Kong » Mon Sep 24, 2018 12:41 pm

Real trucks dont have spark plugs?
Darth Cummins 93 CC W250 NV4500 HX35 350hp 37s 1.5T leafs...its stiff
User avatar
Donkey Kong
fuel screw!!!!
 
Posts: 48
Joined: Wed May 23, 2018 11:18 am
Location: SF Bay Area
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Remps » Mon Sep 24, 2018 4:29 pm

Correct. :grin: I have a 90 D150 that usually won't start without a prime, and runs like schit. Same thing, needs a pump. I fired it up last year, first time in over 10 years, surprised it ran lol.
I'm already window shopping for an om617 for the 90 4runner, what a gutless stinky fuel sucking slob of a motor this thing came with lol.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
User avatar
Remps
14mm rotor
 
Posts: 1116
Joined: Sun May 03, 2009 12:57 am
Location: Saskatchewan
Top

Re: re 90 d150 3.9l stalling and flooding

Postby PToombs » Mon Sep 24, 2018 5:05 pm

Donkey Kong wrote:Real trucks dont have spark plugs?


Just Glow Plugs! :lol:
pete

Just enough power to break everything behind the crankshaft.
User avatar
PToombs
14mm rotor
 
Posts: 11258
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
Top

Re: re 90 d150 3.9l stalling and flooding

Postby Begle1 » Sat Oct 20, 2018 9:47 am

PToombs wrote:This is why I don't have gassers any more! :lol:


If priming a gas truck is like a high school course, priming a Cummins is like grad school. :lol:
1990 D-250 Regular Cab: Tweaked injection pump, built transmission, a cataclysmic charlie foxtrot of electronics, the most intense street-ran water injection system in the country, and some more unique stuff.
User avatar
Begle1
14mm rotor
 
Posts: 1911
Joined: Sat Jan 06, 2007 5:31 pm
Location: Capo Beach, California
Top


Return to Engine

Who is online

Users browsing this forum: No registered users and 5 guests