Just so you are aware if water gets to the injectors, they will be destroyed. After each cycle there is unused fuel that has to go somewhere. New biodiesel lines are viton lined. You can either move it to the top of the intake manifold with a finned cover, lie was on mine originally, or the best is to use a 6' extension cable and relocate it to behind the front bumper, which is where most of us with the 6. I was playing around with that a long time ago, and according to that test the pump in my 95 failed.
If the sensor itself has failed, it can be replaced, but there are some very specific procedures that need to be followed. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. The first series of hills changed my mind. When you read deeper and specifically to the 6. Need help with a P0251 code? I already did my homework on this from the old database I really hate going there now for some reason.
Read more: Aug 06, 2014 Diesel! As soon as you clear them they come right back, both with truck running or immediatly after a resart. Thank Ross Schmitz for this great info. Truck does stumble a little from idle to 1200 rpm slighlty under no load but it always kinda did. Surprisingly the truck never gave me any indication that power was missing, except when towing up hill. You can either move it to the top of the intake manifold with a finned cover, lie was on mine originally, or the best is to use a 6' extension cable and relocate it to behind the front bumper, which is where most of us with the 6.
It has one 2-pin electrical connection and one 2-barbed vacuum connection. You can use a shop drop light and a mirror to see where the leak is. Blows a Ton of White Smoke and Idles Very Rough I replaced the glow plug controller. We have taken it to Register Chevrolet, they hooked it up on the computer ,nothing was found, no codes , nothing. Looking forward to any input. If this can't be accomplished pull the plugs and check the condition. First find out which components are applicable for your vehicle.
As for replacement - I'd consider having a Stanadyne shop do the work. After installing the boost gauge I could see that I would get a 3-6psi spike for about 2 seconds and then boost would drop to 0. This is extremely urgent Question as this is our personal business and this truck is our lifeline. If it comes apart you will break the crankshaft. Thats what I think mine was too.
If in doubt about it replace it with this 4 and carry a mounted to a ready to go if you need it. Took the heath unit from my 96 and plugged it into the van. Come to find out that the oil leak from my pan isn't the pan gasket. Mike Would this still work if I just got a new fuel filter put in, maybe 100 miles ago? It was demonstrated to me by taking your fingers and folding the short drain-back hose coming off the injection pump in half to pinch it shut; the engine very abruptly shut down, just like turning off the key would. The engine will probably produce more white smoke due to lower combustion temperatures with a retarded timing.
Shut it down, let it sit overnight, then drive it like like you stole it. The lower half is held in with a T-40 screw and a plate. It will vary somewhat and you should still be able to read what looks like an average reading. The site is fully functional and ad free! About 3,000 miles ago, it started hiccupping while running, first only under hard throttle and then eventually all the time. I'll chuck up a picture of my truck just so you know I'm not talking through my hat and that I do indeed work my truck good an hard: 34 feet long, 9 feet high and just a tick over 9000lbs. I cracked loosened the fuel injector line to reduce fuel pressure and the knock goes away.
So to get this in the new data base thought I'd post here plus get a couple opinoins. If your vehicle is a diesel, the P0251 code is likely an indication that the optical sensor is sending erroneous readings. The scan from the tech 2 came back with the codes P0251 and P1216 both indicating a bad injector pump. Pull the connectors apart and carefully look at the terminals the metal parts inside the connectors. The specifications for your particular vehicle may be found through a site such as or Common mistakes when diagnosing the P0251 code There are many things which can cause the trouble code P0251. Depending on the problem the truck may go into 'limp home' mode.
Install and torque to 200 in-lb per Stanadyne and reconnect wire. Now the codes are back and here to stay. Check the injection timing first for an excessive white smoke problem. It's based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. At first, it seemed easy with no concerns over power.