VP44 failures...post your symptoms.... - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by SuperDave4x4, this thread has received 9 replies and been viewed 7863 times.

 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 11-06-2006, 04:35 PM Thread Starter
not here much
 
Join Date: Sep 2005
Posts: 302
Points: 4,709
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to SuperDave4x4
VP44 failures...post your symptoms....

What syptoms did yall get when you VP44 died? Hard start? Hard start when warm? dead pedal? Or did it just die?


I have had a hard start for the past 3 weeks and I have NO idea what's causing it. I've checked my Vulcan lines and fittings and everything is fine. Also I've checked my injector lines and return line and all is good.

Also it won't crank on the first try. I have to bump the starter and let the Holley run and then I have to keep the key turned for about 6-8 seconds before it finally starts. Although it will crank on the frist try if the truck has been runing, but it can only let it sit up for about 20 minutes anything longer than that and I have to bump the starter.:

Some say that my diaphram in my VP44 has been ruptured. Do yall have any clue as to what is going on?:shrug:

Any input is appreciated.....:thanks:

1999 Dodge Ram 2500 4x4 24v CTD Ext. Cab-
01' motor w/ orings, .020 gasket, SunCoast, drag comp, 150hp EDMs, 64/71-14, AirDog150.......

Photos

SuperDave4x4 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 11-06-2006, 04:47 PM
TDG Mafia Member #21
 
Join Date: Jan 2006
Posts: 1,345
Points: 14,173
Thanks: 0
Thanked 0 Times in 0 Posts
I had hard starting and a soft pedal. I also threw a p0216 code a couple of times. I'm still able to drive but decided to go ahead and replace it instead of getting left on the side of the road.

It almost sounds like you have an air leak in your system somewhere. How is your lp doing for pressure?

2007 F350 CC 4x4, EGR delete, stock for now

Old truck :"01" Dodge 3500 DRW. Goerend Bros w/ triple disk, Edge Drag Comp, Jammer Stage 5's, Turnbuckle, Dakota Digital and ISSPRO Gauges, BHAF,4" FLO-PRO exhaust, Vulcan kit, Holley Blue Pump, TC Lockup Switch, Snow stage 2, a few more little bits in the works

377hp and 823tq @ Smokin' (with stage 3's/no drag upgrade)
"400" club wannabe
akapparos is offline  
post #3 of 10 (permalink) Old 11-06-2006, 05:07 PM
Senior Member
 
02sprtcumns's Avatar
 
Join Date: Aug 2006
Posts: 259
Points: 27,737
Thanks: 6
Thanked 0 Times in 0 Posts
Dead pedal, No problem starting, At idle Could hold the throttle to the floor and it would missed like crazy and also pour White Smoke. I also threw the p0216 code with 2 other codes.(Cant remember them).
02sprtcumns is offline  
post #4 of 10 (permalink) Old 11-06-2006, 05:57 PM Thread Starter
not here much
Threadstarter
 
Join Date: Sep 2005
Posts: 302
Points: 4,709
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to SuperDave4x4
Quote:
Originally Posted by akapparos
I had hard starting and a soft pedal. I also threw a p0216 code a couple of times. I'm still able to drive but decided to go ahead and replace it instead of getting left on the side of the road.

It almost sounds like you have an air leak in your system somewhere. How is your lp doing for pressure?
My FP is at 14-15 at idle and never goes below 12 at WOT and that's with the Comp on 4x5. My Holley is leaking a little bit, but it always has. :shrug:

Edit: I'm running my Holley as a stand alone pump.

1999 Dodge Ram 2500 4x4 24v CTD Ext. Cab-
01' motor w/ orings, .020 gasket, SunCoast, drag comp, 150hp EDMs, 64/71-14, AirDog150.......

Photos

SuperDave4x4 is offline  
post #5 of 10 (permalink) Old 11-06-2006, 06:47 PM
TDG Mafia Member #21
 
Join Date: Jan 2006
Posts: 1,345
Points: 14,173
Thanks: 0
Thanked 0 Times in 0 Posts
That's not good news. If you have eliminated air in the system I would have to say it's the pump. My hard starts were when the truck was warm. I would have to let the fuel pressure drop back to "0" and then the truck would start. If there was any pressure on the system the truck would have to crank for 5 or 6 seconds before it would catch. Did you try to pull any codes?

2007 F350 CC 4x4, EGR delete, stock for now

Old truck :"01" Dodge 3500 DRW. Goerend Bros w/ triple disk, Edge Drag Comp, Jammer Stage 5's, Turnbuckle, Dakota Digital and ISSPRO Gauges, BHAF,4" FLO-PRO exhaust, Vulcan kit, Holley Blue Pump, TC Lockup Switch, Snow stage 2, a few more little bits in the works

377hp and 823tq @ Smokin' (with stage 3's/no drag upgrade)
"400" club wannabe
akapparos is offline  
post #6 of 10 (permalink) Old 11-06-2006, 07:53 PM Thread Starter
not here much
Threadstarter
 
Join Date: Sep 2005
Posts: 302
Points: 4,709
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to SuperDave4x4
Well I tried to pull some codes when it first started, but I didn't get anything. I'm going to run up to advance auto and have them run it again.

1999 Dodge Ram 2500 4x4 24v CTD Ext. Cab-
01' motor w/ orings, .020 gasket, SunCoast, drag comp, 150hp EDMs, 64/71-14, AirDog150.......

Photos

SuperDave4x4 is offline  
post #7 of 10 (permalink) Old 11-06-2006, 08:46 PM
Senior Member
 
sstockton's Avatar
 
Join Date: Jan 2009
Posts: 3,514
Points: 69,212
Thanks: 3
Thanked 64 Times in 60 Posts
to me that sounds like you are getting air in your lines. The metering diaphram will make it hard to crank when warm if there is any pressure on the diaphram. Thats what happened to mine I installed an oil pressure switch, problem solved. I would check all of your return lines, even a pin hole leak that isn't leaking fuel could be getting air in the lines causing it to get choked up. That is where I would start.
Sean

2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)
www.totalperformancediesel.com
sstockton is offline  
post #8 of 10 (permalink) Old 11-06-2006, 09:06 PM
Bouncer
Guest
 
Posts: n/a
Points: 0 [Check]
I will make a third vote for air. You are losing prime and getting air in the lines when it builds pressure back up. Every VP I have seen that has gone out the hard starts were when hot. They would all start reasonably well when cold. Not saying it can't be bad, but your symptoms are leading away from a bad pump.
post #9 of 10 (permalink) Old 11-06-2006, 09:06 PM
 
Join Date: Feb 2006
Posts: 93
Points: 416
Thanks: 0
Thanked 0 Times in 0 Posts
I had no problems starting but just had dead pedal and threw the p0216 code...didn't find it was bad til a week after i bought my truck but luckily local shop replaced it was warranty work even though i had already the wire tapped for my comp:Thumbup:..saved me quite a few dollars
strokersmoker20 is offline  
post #10 of 10 (permalink) Old 11-06-2006, 10:10 PM Thread Starter
not here much
Threadstarter
 
Join Date: Sep 2005
Posts: 302
Points: 4,709
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to SuperDave4x4
Quote:
Originally Posted by sstockton
to me that sounds like you are getting air in your lines. The metering diaphram will make it hard to crank when warm if there is any pressure on the diaphram. Thats what happened to mine I installed an oil pressure switch, problem solved. I would check all of your return lines, even a pin hole leak that isn't leaking fuel could be getting air in the lines causing it to get choked up. That is where I would start.
Sean

I looked over my return line, but it's hard to see a pin hole and I can't hardly see the dern thing in the engine bay cause there is so much going on under the hood, but from what I could see it looked fine. The only thing I can think is that the line on top of my tank could have rusted. My Vulcan draw straw will be here on wednesday or thursday so will see what I find when I drop the tank.

Anybody know how much a new return line is? Has any made a custom one yet?

Thanks for all the help guys!


Edit: I checked for codes and nothing was to be found.

1999 Dodge Ram 2500 4x4 24v CTD Ext. Cab-
01' motor w/ orings, .020 gasket, SunCoast, drag comp, 150hp EDMs, 64/71-14, AirDog150.......

Photos

SuperDave4x4 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in












Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome