Am I sucking air

rcsund · 04-23-2008, 06:22 PM

Over the last couple of days the trucks has been acting like it is losing prime. In the past you get in the truck turn the key and almost instant start. Now if you don't push the pedal at start up it will not start.

On the way home I had it floored and almost nothing was happening. It did not rev the tach, no smoke. It just did not hardly go. I have thought the truck in the past really smelt like diesel. It did not smell any more than usual. I looked when I got home and there was no fuel dripping any where.

Any Ideas?

__________________
1998 12V Quad Cab, LWB
“The more I search for my significance seems the more I disappear. I wonder have I made a difference in anybodies life since I’ve been here.” Randy Travis

jd_2001 · 04-23-2008, 06:24 PM

mine would die sometimes randomly when you were driving it was a cam sensor. i had no trouble starting it though.

__________________
2001 2500 white ext cab /edge comp /edge jammer 5's/nitrous/II silver62/hot rod vp44/fass150/studs-orings/ ported polished/valve springs/fluid dampr/southbend fe.

turboup · 04-23-2008, 06:33 PM

I had the problem my 97 that it wouldn't start unless i pushed down the pedal. It might have to do with the injection pump. I took the pump off had it calibrated. Now it fires right up.

__________________
1997/2500 5 speed, custom S-400, haisley HMR street puller DD, 275hp sticks,.93 injection lines, 13mm pump, Fire rings, ARP studs,60Lb valve springs, keepers and retainers, haisley pulling cam, Fly cut low compressinon pistions, raptor 150 Air dog 150,

rcsund · 04-23-2008, 06:39 PM

What are the symptoms of a TPS gone bad? It was running great up until this.

__________________
1998 12V Quad Cab, LWB
“The more I search for my significance seems the more I disappear. I wonder have I made a difference in anybodies life since I’ve been here.” Randy Travis

Last edited by rcsund : 04-23-2008 at 07:08 PM.

rcsund · 04-23-2008, 08:21 PM

Went and got my daughter. Played with the truck a little. If you keep it in neutral it is rev. If you but it in drive and stand on the brake it will only rev to 1500 rpms. After that you can keep pushing the pedal and nothing happens.

Just for the heck of it I stopped by Advanced on the way home to see what a TPS cost. $178.00. Almost sucked my self a wedgie.

__________________
1998 12V Quad Cab, LWB
“The more I search for my significance seems the more I disappear. I wonder have I made a difference in anybodies life since I’ve been here.” Randy Travis

PVXCummins · 04-23-2008, 08:41 PM

Check your fuel lines in the back of the motor. If they are original, then they have probably dry rotted and air squeaks in there. My truck does the same thing but it drives fine after i get the air outta the system.

__________________
1998 4x4 12 Valve, 47RE Trans, Panbrake Exhaust Brake and Torque Converter Lock up, BHAF and custom heat shield, Banks 4 inch exhaust from turbo, Di Pricol Gauge Cluster, #6 Fuel Plate slid, Star wheel cranked, Silencer Ring MIA

notomas · 04-28-2008, 08:42 PM

Make sure the fuel shut off is opening all the way. Mine was doing simular to what yours is. It turned out to be a bad relay.

__________________
97 2500 4x4, excab , K&N intake, 4" exhaust, egt,boost,tranny temp on the pillar, 5 star viskus torque converter, converter lock up, stage lll rebuild, #100 plate, 3gsk, boost 30psi, starwheel forward and Smoke screw adjusted for power notomas@yahoo.com

04-23-2008, 06:22 PM	#1 (permalink)
rcsund Cummins Fanatic Join Date: Feb 2008 Location: Parker, CO Posts: 116 rcsund's Truck Pics	Am I sucking air Over the last couple of days the trucks has been acting like it is losing prime. In the past you get in the truck turn the key and almost instant start. Now if you don't push the pedal at start up it will not start. On the way home I had it floored and almost nothing was happening. It did not rev the tach, no smoke. It just did not hardly go. I have thought the truck in the past really smelt like diesel. It did not smell any more than usual. I looked when I got home and there was no fuel dripping any where. Any Ideas? __________________ 1998 12V Quad Cab, LWB “The more I search for my significance seems the more I disappear. I wonder have I made a difference in anybodies life since I’ve been here.” Randy Travis

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04-23-2008, 06:24 PM	#2 (permalink)
jd_2001 Diesel Freak Join Date: Jan 2008 Location: pennsylvania Posts: 799 jd_2001's Truck Pics	mine would die sometimes randomly when you were driving it was a cam sensor. i had no trouble starting it though. __________________ 2001 2500 white ext cab /edge comp /edge jammer 5's/nitrous/II silver62/hot rod vp44/fass150/studs-orings/ ported polished/valve springs/fluid dampr/southbend fe.

04-23-2008, 06:33 PM	#3 (permalink)
turboup Newbie Join Date: Feb 2008 Posts: 18 turboup's Truck Pics	I had the problem my 97 that it wouldn't start unless i pushed down the pedal. It might have to do with the injection pump. I took the pump off had it calibrated. Now it fires right up. __________________ 1997/2500 5 speed, custom S-400, haisley HMR street puller DD, 275hp sticks,.93 injection lines, 13mm pump, Fire rings, ARP studs,60Lb valve springs, keepers and retainers, haisley pulling cam, Fly cut low compressinon pistions, raptor 150 Air dog 150,

04-23-2008, 06:39 PM	#4 (permalink)
rcsund Cummins Fanatic Join Date: Feb 2008 Location: Parker, CO Posts: 116 rcsund's Truck Pics	What are the symptoms of a TPS gone bad? It was running great up until this. __________________ 1998 12V Quad Cab, LWB “The more I search for my significance seems the more I disappear. I wonder have I made a difference in anybodies life since I’ve been here.” Randy Travis Last edited by rcsund : 04-23-2008 at 07:08 PM.

04-23-2008, 08:21 PM	#5 (permalink)
rcsund Cummins Fanatic Join Date: Feb 2008 Location: Parker, CO Posts: 116 rcsund's Truck Pics	Went and got my daughter. Played with the truck a little. If you keep it in neutral it is rev. If you but it in drive and stand on the brake it will only rev to 1500 rpms. After that you can keep pushing the pedal and nothing happens. Just for the heck of it I stopped by Advanced on the way home to see what a TPS cost. $178.00. Almost sucked my self a wedgie. __________________ 1998 12V Quad Cab, LWB “The more I search for my significance seems the more I disappear. I wonder have I made a difference in anybodies life since I’ve been here.” Randy Travis

04-23-2008, 08:41 PM	#6 (permalink)
PVXCummins Cummins Enthusiast Join Date: Feb 2007 Location: Brodheadsville, PA Posts: 260 PVXCummins's Truck Pics	Check your fuel lines in the back of the motor. If they are original, then they have probably dry rotted and air squeaks in there. My truck does the same thing but it drives fine after i get the air outta the system. __________________ 1998 4x4 12 Valve, 47RE Trans, Panbrake Exhaust Brake and Torque Converter Lock up, BHAF and custom heat shield, Banks 4 inch exhaust from turbo, Di Pricol Gauge Cluster, #6 Fuel Plate slid, Star wheel cranked, Silencer Ring MIA

04-28-2008, 08:42 PM	#7 (permalink)
notomas Cummins Enthusiast Join Date: Sep 2007 Location: Rifle, Co Posts: 231 notomas's Truck Pics	Make sure the fuel shut off is opening all the way. Mine was doing simular to what yours is. It turned out to be a bad relay. __________________ 97 2500 4x4, excab , K&N intake, 4" exhaust, egt,boost,tranny temp on the pillar, 5 star viskus torque converter, converter lock up, stage lll rebuild, #100 plate, 3gsk, boost 30psi, starwheel forward and Smoke screw adjusted for power notomas@yahoo.com