k long post but very detailed... i am not an auto motive guy. heavy equipment and hydrauilcs is me. id o mostly with cats and detroits. but i now a thing or two about 6.2 and 6.5. i have a 5 speed 6.5 l turbo... last year i had the injector pump relpaced professionally... current issue. it wont start on its own. i can puch it with my fork lift and its starts. batteries are hot and charged. but wont start by the switch. glow plugs are hot. fuel pump works. got flow to and out of injector pump. but no juice to injectors.... turns over great. but wont start. when it runs its great. normal start up smoke. but clears out. i have a core that i have torn down and looked at but i dont know anything about this electrical injector b.s. note this would the third injector pump in this engine my core from the last is dated as 00 and its a 96... i have a dealer manuel for this complete digrams and and what not but... im kinda old school... i dont do scan tools and codes... another note. no codes or check engine light... any tips or knowlege is accpted... this one of two work trucks i need it going please help--diesel

 

well im going to try to clarify something. if your getting fuel out of injection pump then you have to get fuel to injectors because the only thing between injection pump and injectors are a fuel line so unless something is clogging all 8 injection lines i dont think your getting fuel out of the injection pump. also when your saying you dont have fuel at injectors are loosening the fitting on top of the injector or saying the nozzle has no fuel.

you werent very clear so are you saying that you can start the truck with fork lift

 

normally when you crank the engine fuel squirts out of the injector tubes... i get nothing maybe a little dribble. or in my terms its dry. i have checked the suction screen on the ip and the discharge. i have unrestricted flow to the ip so its not my filter. its will start if i drop the clutch... but if i use the starter it just looks at me stupid. turns over like a sob. no smoke tho. does any one know about mech. conversions? kits and what not.

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so ijust got off the phone with the guys that did my ip last year... dynamic diesel in snohomish wa. and they are befuddled as much as i am. but think its a lift pump failure... maybe it doesnt put out enough volume when cranking not when the switch is pulled. im going to check it out. in a few...

 

do you hear it whenyou turn the key?

 

dude yes... one would think that if i was trying to start my vehicle with the key i would be trying to solve the issue with the key... this isnt some peaice of equipment that i could just add swithces left and right.... im tired of this b.s. i have been trouble shooting this fking thing since last month. the manuel that i have is b.s. its a dealer service manuel. and it dont tell you jack...

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how do i manually put it in limp mode?

 

well hook up a fuel pressure gauge before the injection pump and check for pressure. when you do get it started do a 2000 rpm test. slowly rev the truck up to 2000 rpm and hold it up there for 5 seconds, then slowly lower back down to idle. if it can do it smoothly the ip is fine but if it surges or dies or you cant do it smoothly the ip is probably on its way out. also you say no codes but sometimes a soft code is thrown without turning on the ses liht so hook up a code scanner anyway.

cant really do that i dont think unless you got a tech 2 or something like that. also if you unplugged a major sensor like in the ip it would throw it into limp mode. just wondering but why put it into limp mode.

 

well i removed the pmd and checked it out according to my meter it checks out... i put my core pmd on the ip in the truck.(with out removing the ip) plugged in the op.sensor and what not but i removed all my injector lines and now for some magical reason i have fuel comming out the lines... i think i had a big air bubble in thecircut... so for now the plan is get a 9 resistor for the pmd and make a relocating kit. cuz i gots tools for doing that. reseal my valve covers. replace fuel lines. injectors mayb. re attach lines. and intake.

why throw it in limp mode? to see if it will start and run "knowing" that its in limp mode. i read that article that you posted for me it was a great help.

thanx--diesel

 

thats wierd but im glad i could help. hope it works good for you

 

she lives agian...honestly dont know what the hell idid wasthecase but i did come across a burnt out pcm fuse just before reassembly. took her out for a test drive. runs like a champ. that was after i had to replace the ckp sensor i had error codes so i borrowed a obd 2 plug anda snapon scan tool. those are cool. any ways thanx for the help. im diggin up a number 9 resistor and the heat sink is on the mill so i gots some more tinkerin to do.

 

have fun. these are fun old trucks