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Power Strokes
94-97 Tech
Ok I'm stumped?
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[QUOTE="bad12jr, post: 89838, member: 1001"] OK guy my truck is about ready to become part of a bonfire . I put in ad's , a 17* , and front cover off a motor I bought used. Truck starts and runs like a scalled dog cold. Once it gets to operating temp it seems to lose a little top end from 3/4 pedal to wot. When at full temp it will sometimes die coming to a stop at a light it is very hard to restart and seem like it will try to hit. Did it twice and would not restart. ( Please don't shoot me but I had to give it a small shot of brake part cleaner for it to hit. Was in the middle of the road in traffic). It is also hard to start hot if you shut it off. No matter if its 5 seconds or 15 min. Pulled codes and got some expected codes due to unpluging some sensors. Got a CPS intermittent code which I think is due to the long cranks? Everything else seemed to be odd codes but nothing seemed realted. Clear them and will see what returns. The scanner I'm using is the torque app on an android phone with a bluetooth adapter. (Still testing but seems to work ok on my truck will post results in a different thread after some more testing) But I got it to pull codes and some datastream. It is a little glitchy but seems to read close to the snap on I used the other day. The numbers seem to be spot on the Snap on at idle and wot but the glitch doesnt give a good flow of data through the rpm range. DC 14% at idle 710 icp DC 53 to 60% wot 2400 icp Anyway it will surge slightly at idle but still has bottom end power. When it does die the rpm will drop below 400 and lose all pedal response then die. Here is what I've done in order. Checked oil. (400 miles since changed) Oil PSI on analog gauge ( 70 cruising 32 at idle) Swapped IPR from 15* pump ( no change) Replaced IPR orings ( no change) Unplugged ICP ( same) New IPR ( same) Changed the IPR plug in the harness. (nothing) My only other thing I can think of is HPOP problem. I think Im going to switch back in my 15* and see what happens. Will loose power but everything else should be normal. Any other ideas or things to check. I havent checked if the hpop full when it dies because usually in the road. Thanks guys [/QUOTE]
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