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Discussion Starter · #1 ·
Ok guys so I had a P0216 code checked everything and determined needed a VP. I bought a 2 year one from Thoroughbred, put it on and in no time starts running like crap and getting the code. Sent it off to them and found fuel contamination. Another new VP, filters, tank drop and clean, lines cleaned and new injectors. Truck was great, I have put maybe 500 miles on it at most and getting dead pedal again and P0216. I know the fuel system is clean so what in the heck could be screwing my VP? I love this old truck had it 20 years but I sure can't keep doing this. It has only happened when I am pulling cargo trailer after driving about 30 minutes. Fuel pressure never drops off either I am a solid 14-16.
 

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do the hot wire test from Blue chip.injection
 

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Did you find any contamination in the filter or bottom of its canister? If your fuel pressure is accurate, low fuel pressure is not causing 0216 timing piston damage. Is there any additional codes? Have you cleaned all battery terminals and grounds thoroughly?
 

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PS, you are not the first or even second to have problems with VP's from Thoroughbred lately.
 

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Discussion Starter · #6 ·
Biggest part of it last year had a PCM issue so a lot of wiring was looked at. Yeah of course there was filter contamination but the whole system was cleaned. Grounds cleaned
 

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Cleaning the grounds are not good enough if you have the slightest bit of rust or corrosion
In my exp you have to provide direct paths back to the Battery independent of the fenders.
Most pf the eys and lugs will be corroded too and need replacement .
Sorry for the bad news
 

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Discussion Starter · #8 ·
Yeah well a bad ground shouldn't ruin a brand new VP. That doesn't even make sense.
 

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Nope, prolly not, but will make them not work- did you try the hot wire test?
 

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Discussion Starter · #10 ·
What hotwire test? It only acts up pulling the trailer after about a half hour of driving.
 

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I would get on the phone with these guys, they are more then willing to help- BTDT
They are not just a vendor. , or middle man
I think you need the center player here??
 

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Discussion Starter · #12 ·
So little update. I've driven the truck around several times now without pulling the trailer and it has not so much as hiccupped at anything. So it's something with pulling the load and it's not even a big load. 16' V nose trailer, we are maybe 5000lbs all loaded. Anybody have any idea what the hell is up with this thing? I'm starting to think thoroughbred just deals in junk pumps.
 

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Instead of the trailer try it on a steep hill in OD lockup at 45-55mph at/near full throttle unloaded.after that half hour or more. In other words lug it for while.
Have you tried a different apps on it?
 

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Discussion Starter · #14 ·
So drove the truck without trailer to my son's wrestling tournament this morning. It was about an hour and a half drive and knowing there were some good big hills. So I tried the whole way to replicate. Tried lugging just barely catching OD up hills, nothing. I tried lugging and then just hammering it, nothing. I tried letting it run on cruise, nothing. Then finally. I exit off highway onto a side highway then it finally does it. Dead pedal, rpms slowly fall off it doesn't just go to idle. Fuel pressure steady at 15. Boost of course quits and I pump the pedal and it comes back and then it'll do it again. I haven't pulled codes again yet but I'm sure it probably has a P0216 again.
 

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also there is a trouble shooting guide there
 

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Can't argue with him, fee to talk to knowledgeable people. Is the current VP on warranty?
 

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Discussion Starter · #19 ·
It is but I'm sure Thoroughbred is going to try and not cover it I'm pretty well done with them at this point. I've found out their 2 year "new" pump really isn't much new to it.
 

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As Big fish says- if the vendor O Riley will make it a lifetime, then it is a no-brainer to buy from.
Next would be a real rebuilder and skip the middlemen
Blue Chip has always treated me so well and never ever made a dime off me yet, so I have to recommend them.
 
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