Re: Bad or Weak Injector Pump signs
FirstDiesel – Having gone thru this 10 days ago.
1) Hook up to the diagnostic code puller at the dealer. The P 0216 & other codes will not cause the check engine light to come on.
2) Some guys have complained of low power, this was not my case.
3) Mine would not start when the engine was hot. This was my clue. However after installing the rebuilt pump my MPG is up by 2 mpg (and the engine sounds better at the higher rpm’s) my “old” pump was having problems since I bought it in March.
4) The shop where I bought my VP44 & LP had another ’99 in for VP44 replacement that would not start unless you disconnected the LP pigtail from the wiring harness (go figure).
Get a fuel pressure gauge and be sure it provides 13+psi every time the starter is bumped. This will help keep the VP44 happy.
My .02 T
'99 2500 QC LB 4wd 5 spd, 3.55LS, DSS, Westach FP gauge, boost gauge, sport pkg (white), BFG 285's (installed LP & VP44 at 105K, 2nd LP at 147K, 3rd LP at 160K (Moved LP Carter 4601 to frame rail by the tank), 2nd Carter 4601 at 208K, twin pumps), 2nd injector pump at 229K