97 250 third cps!!

[wynndaddy]

hey, ive got a 97 -250 that wont start.im on my third cps counting the original.it is showing cps code on my edge evo on all three sensors.it turns over and will start on occasion after long cranking.if it does start it is really rough and feels to be in a strain.it doesnt want to idle you have to give a little pedal intill it warms up.does anybody know what would cause this besides the cps?i cant figure why if it isnt the cps then why is it throwing that code.it has good oil pressure and the glow plug relay is ok.any ideas would be appreciated.

[Diesel_Diagnostician]

code is???? and do you have a CPS that you know is good????

[mschn99]

does it run well once warm? have you checked the level in your high pressure oil resevour? have you looked in your fuel bowl for signs of engine oil? Have you checked your engine oil level?

[Diesel_Diagnostician]

Thanks Marc, that was gonna be my next set of questions...lol....

[mschn99]

Originally Posted by Diesel_Diagnostician

Thanks Marc, that was gonna be my next set of questions...lol....

no problem...u know what they say about great minds

[bighunter]

Originally Posted by Marc

does it run well once warm? have you checked the level in your high pressure oil resevour? have you looked in your fuel bowl for signs of engine oil? Have you checked your engine oil level?

How do you check the level of oil in your Hpop resevour?

[wynndaddy]

hey guys thanks for the feedback.i pulled a cps from a truck that i know is good and it still is the same thing.as far as the code i cant remember the code # but it said cps failure code.the oil level is good in the engine and the resevior.when it warms up it does run better and will idle but at around 500 rpm and it has a miss.when you give it pedal it accelerates but seems to be in a strain kinda feels like tight valves in a gas motor.i read another thread with a very close problem and it spoke of a check ball in the resevior being bad.where is this and what does it do.i assume that it regulates the oil to the tank.i asked a mechanic at the local dealer about this and he acted like i was stupid,said he had never heard of such a thing.thanks agian for getting back with me on this.

[mschn99]

if the level in the high pressure resevour is within an inch of the top...the check ball isnt your problem...

[mschn99]

Originally Posted by bighunter

How do you check the level of oil in your Hpop resevour?

on the drivers front of the motor..dead center under the front of the plastic trim is the resevour. On the drivers side of that resevour is an allen plug..right on top.......the oil should be one inch or less from the top of that plug hole....

[wynndaddy]

hey thanks mark,it is about an inch from the hole but i thought i would never get that plug out it was really tight for an allen head.