A friend of mine was driving down the highway and told me his truck would stutter every once in a while. He said it felt like the engine fell off for just a second then would come back up and run. He drove it to my place, about 25 miles to check it out. Of course on the way here it ran fine and we couldn't see any issues with it. When he was getting ready to leave after letting the truck sit for an hour or two, he started it and let it idle. After it ran at idle for a few minutes it just shut off. It started again right away.
A few weeks ago the truck would idle until the temp hit 190 then it would shut off. He got a new IPR valve but couldn't get the valve out so he just changed the electrical sleeve on the valve. The pickup started and ran fine for a couple of weeks. The other day it died on him, so he changed the ICP sensor. It ran again after that.
After it died the other night at my place I changed the while IPC valve for him with the new valve. I did notice the old valve used a 1 1/8 socket, the new one was 1 1/16. Got the new valve in and went to start the truck. It cranked for probably 10 to 20 seconds then slowly came to life and ran. Let it run a while and shut it off, started it again. Again it cranked for 20 seconds or more and started. Let it run for 5 minutes and shut it off. Now it wont start. Even today after it cooled off it wont start. The engine will start spinning fast like it wants to start but it wont run.
I connected my forscan to check it out. The IPR will get up to 65% but the ICP will only get up to 485. When cranking the ICP will bounce between 300 and 450, then will get up to 485 when it starts spinning faster like it wants to start.
I unplugged the ICP but it still wouldn't start.
So, where do I look next? I don't know where he got the IPR so don't know for sure if it is a good one or not. I'm going to change back to the old one to see if it helps. What do I check next?
A few weeks ago the truck would idle until the temp hit 190 then it would shut off. He got a new IPR valve but couldn't get the valve out so he just changed the electrical sleeve on the valve. The pickup started and ran fine for a couple of weeks. The other day it died on him, so he changed the ICP sensor. It ran again after that.
After it died the other night at my place I changed the while IPC valve for him with the new valve. I did notice the old valve used a 1 1/8 socket, the new one was 1 1/16. Got the new valve in and went to start the truck. It cranked for probably 10 to 20 seconds then slowly came to life and ran. Let it run a while and shut it off, started it again. Again it cranked for 20 seconds or more and started. Let it run for 5 minutes and shut it off. Now it wont start. Even today after it cooled off it wont start. The engine will start spinning fast like it wants to start but it wont run.
I connected my forscan to check it out. The IPR will get up to 65% but the ICP will only get up to 485. When cranking the ICP will bounce between 300 and 450, then will get up to 485 when it starts spinning faster like it wants to start.
I unplugged the ICP but it still wouldn't start.
So, where do I look next? I don't know where he got the IPR so don't know for sure if it is a good one or not. I'm going to change back to the old one to see if it helps. What do I check next?