Initial Thoughts
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
So, I drove the truck untouched all over the neighborhood today for about 30 miles with no failures. I thought I felt a little warble one time but that was it. It ran fine, otherwise. It was mixed driving of normal 25 MPH residential and longer get-up-some-speed streets. Nothing except that one little thing as I was coming up to a stop sign. I think I'm going to let it cool down and swap out the IPR anyways. I just can't see that the things the shop replaced (ICP, EBP sensor, and CPS) were the cause of the stalling. My luck - if I had driven 31 miles, it would have died... 
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
So, I drove the truck untouched all over the neighborhood today for about 30 miles with no failures. I thought I felt a little warble one time but that was it. It ran fine, otherwise. It was mixed driving of normal 25 MPH residential and longer get-up-some-speed streets. Nothing except that one little thing as I was coming up to a stop sign. I think I'm going to let it cool down and swap out the IPR anyways. I just can't see that the things the shop replaced (ICP, EBP sensor, and CPS) were the cause of the stalling. My luck - if I had driven 31 miles, it would have died...
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Senior User
Joined: Feb 2013
Posts: 171
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From: carmichael, ca
Edited again: Just came across this thread. I'll let it cool down and see what it reads.
** Let the old solenoid cool down and it's at 10.7 ohms now. Still not sure if it should be in the 30'ish range when warm.
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Senior User
Joined: Feb 2013
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From: carmichael, ca
So, I pulled the IPR and put the new one in. Earlier, I took the new solenoid and heated it up with the wife's IPR solenoid heating device (or her "hair dryer" as she likes refers to it...
). It got quite warm - maybe not as hot as in the engine compartment, but pretty warm to the touch - and it only measured 11.2 ohms. I used Brent's IPR Replacement Guide to help me out. Only took about 35-40 minutes. Test drove it a few miles and, maybe just because of the new IPR, I feel more confident then I did earlier. I suppose time will tell. It does seem to idle at a slightly higher RPM (750) than before the swap (700'ish). Don't know if that means anything or not.
). It got quite warm - maybe not as hot as in the engine compartment, but pretty warm to the touch - and it only measured 11.2 ohms. I used Brent's IPR Replacement Guide to help me out. Only took about 35-40 minutes. Test drove it a few miles and, maybe just because of the new IPR, I feel more confident then I did earlier. I suppose time will tell. It does seem to idle at a slightly higher RPM (750) than before the swap (700'ish). Don't know if that means anything or not.
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