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Irregular idle revving up and down VIDEO & Update!
Update: I swapped the original ipr back in and the truck runs the way it did originally. The icp irregularity is resolved. I guess I got a bad ipr from Ford[emoji1745] The engine idle still goes up and down when at idle, and stopped. Ive replaced the cps. Also replaced the icp connector. I... -
Irregular idle revving up and down VIDEO & Update!
I wiggled the icp sensor the other day and the truck died. Thought it was a bad connection so i put a new pigtail on but still no dice. I did unplug the icp sensor and started the truck. The scan gauge showed something crazy like 65000 psi. I assume this is an error on the output reading? My... -
Irregular idle revving up and down VIDEO & Update!
Bump Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
I put a brand new cps sensor and it cleared the code i had, but truck stills runs the same. Here’s a graph with icp and dc% to help explain whats going on. I’m going to do the electrical test above and then my last idea is to put the original IPR back in. Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
I have a new dark blue cps on the way. Will swap it out saturday and give that a try Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
It was the ipr sensor that I changed. But i did remove and check inside the icp sensor connection. There was a tiny amount of oil. I cleaned the contacts with contact cleaner and connected it back. Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
I’ll look into the codes more as the cps one is definitely new. Fuel pressure is good. I have a gauge under the hood and its set to 60psi. I dont have large injectors so im confident pressure isnt dropping under throttle. Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
Oh I see what you are saying now. I have a mutlimeter. Can you explain the diode test? Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
Batteries are not even a year old. Interstate batteries manufactured on 2/24. Truck cranks over and starts strong. If I installed a new working ipr sensor, then why would I have this really weird performance issue now? Just doesnt make sense. What are the odds I got a bad sensor from Ford... -
Irregular idle revving up and down VIDEO & Update!
I don’t think it’s headlight flicker. I’ve had the headlights off this entire time. I did some testing and got some very weird results. Put a brand new motorcraft ipr sensor in and torqued it to proper spec. Now the truck idles just fine but there is zero power until the icp duty cycle hits 45%... -
Irregular idle revving up and down VIDEO & Update!
It started without any changes to the truck. ICP voltage koeo is .22 volts. Ipr connector has a little oil on the outside of the male connector. Not enough that its dripping. I have a spare IP sensor, I just need to get the socket for it. Sent from my iPhone using Tapatalk -
Irregular idle revving up and down VIDEO & Update!
Anyone seen this before? Is this an issue with the ipr? Sent from my iPhone using Tapatalk -
Crank but no start, has fuel
Got the truck running. Swapped a new ipr in and it fired right up. Sent from my iPhone using Tapatalk- young7.3
- Post #15
- Forum: 94-97 Tech
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Crank but no start, has fuel
It’s most definitely serviceable. https://www.thedieselstop.com/threads/this-is-how-to-repair-the-non-serviceable-plug-on-the-hpop.170763/ Sent from my iPhone using Tapatalk- young7.3
- Post #14
- Forum: 94-97 Tech
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Crank but no start, has fuel
My friend took the check valve back apart and everything was installed as normal. He noted that when he removed the icp sensor no oil came out like it normally would. What other reasons would the hpop not be creating oil pressure for? This is a fairly new 17 degree hpop. Sent from my iPhone...- young7.3
- Post #11
- Forum: 94-97 Tech
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Crank but no start, has fuel
He removed the hpop to repair a leak. I dont remember if the oil pressure gauge in the cluster moved or not during testing. Im going to have him remove a plug on the oil rail and see if oil shoots out while cranking. Sent from my iPhone using Tapatalk- young7.3
- Post #9
- Forum: 94-97 Tech
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Crank but no start, has fuel
Icp is the top middle which reads zero. Weird thing is with the icp sensor unplugged we got 2500 psi. Which i know is wrong because my truck only gets 600-800 psi when starting. He has a 17 degree oil pump. Its full of oil. Even the hpop reservoir. Same ipr as before. And its plugged in...- young7.3
- Post #4
- Forum: 94-97 Tech
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Crank but no start, has fuel
Forgot the photo. Sent from my iPhone using Tapatalk- young7.3
- Post #2
- Forum: 94-97 Tech
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Crank but no start, has fuel
My buddy went in and repaired the non serviceable plug with a new seal and used loctite. He triple checked to make sure the check valve was assembled properly. Now after putting it back together he has no start, but cranks very well forever. -Has fuel pressure. 60+ via gauge -has rpm movement...- young7.3
- Thread
- Replies: 15
- Forum: 94-97 Tech
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Brand new moog ball joint rotates inside knuckle
Update: The .005 oversized balljoints fit. Sent from my iPhone using Tapatalk
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Will a 1996 F6TZ-9A451-F engine wiring harness work on a 1997 f250 HD ?
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