Won't Start

[mrfudd]

I have a 94 cummins that won't start unless I pump the primer I thought but today I checked the fuel selonoid and it does not pull up when the key is on, but you can pull it up and it will stay until you turn the key off. I checked the blut wire and it has juice. Once I get it started i can stop and start it all day, but leave it set awhile and no start.

[clc]

This is the wrong section for your question. It should be in either 911 or 2nd gen powertrain.

It may be the rubber boot on the shutdown solenoid. The boot on my 96 turned gummy and caused the same symptoms. I took the solenoid off, removed the boot, cleaned and oiled the solenoid and slug, and reinstalled the solenoid without a boot. It has worked flawlessly for months now. I originally intended to get a new boot but I don't see much point in that now.

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96 3500 4WD, 47RE, gauges; 97 3500 4WD 47RE, gauges; 97 3500 2WD 5-spd; all club cab. 98.5 2500 2WD SB, 5-spd, gauges, quad cab

[BBRam]

Moved to the 911 Forum for better exposure.

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03-3500, DRW, QC, 4x4, DTT Trans, Mag-Hytec, R700 BD Twins, BD IC Boots, BD Billet Flexplate, Lockup Switch, SMARTY TNT-R BETA/TS MP-8, Eliminator Fuel System, Floor It Stage 3 CP3 & Rail Cap, BIG Stix's by FTE, ARP Head Stud's, Springs, Fluidampr, ATS ARC-FLOW, AFE, Boost, Drive Pressure, Pyro, Fuel Pressure, Tran's Temp, Rail Pressure Gauge, GDP Ladder Bars, GrandRock 7" Miters. Old #'s (R/T .021, 60' 1.76, 1/4 ET 13.14 @ 100.45 mph)

[Joe G.]

Originally Posted by mrfudd

I have a 94 cummins that won't start unless I pump the primer I thought but today I checked the fuel selonoid and it does not pull up when the key is on, but you can pull it up and it will stay until you turn the key off. I checked the blut wire and it has juice. Once I get it started i can stop and start it all day, but leave it set awhile and no start.

The start solenoid will not pull up with the key on. It has to be turned to start to pull up. Look here for things that could be wrong: Joe G's fuel system writeup

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KDP tab fix info and fuel system article jgeorge1@suddenlink.net '95 2500 CC auto 4X4,3.54,Combo EGT/boost guage,PacBrake,TST #5,370 injectors,DTT TC/VB, Cummins chrome kit.

[clc]

Originally Posted by mrfudd

Once I get it started i can stop and start it all day, but leave it set awhile and no start.

I gathered from this that the solenoid pulls itself up on starts successive to the initial manual assist. That is the way mine did with the gummy boot. I guess warm gum was not a problem but cold gum was.

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96 3500 4WD, 47RE, gauges; 97 3500 4WD 47RE, gauges; 97 3500 2WD 5-spd; all club cab. 98.5 2500 2WD SB, 5-spd, gauges, quad cab