Spuddering succotash
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It does not sound dumb at all but I did an oil change not very long after this problem started thinking it could be the issue and it did not change anything. I have about 3000 miles on my oil right now. I use Shell Rotella T6 5W40 synthetic and Motorcraft OEM filters only.
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It does not sound dumb at all but I did an oil change not very long after this problem started thinking it could be the issue and it did not change anything. I have about 3000 miles on my oil right now. I use Shell Rotella T6 5W40 synthetic and Motorcraft OEM filters only.
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Well, still no luck. Checked everything I can possibly check with the ScanGauge. Programmed the X-Gauge with everything I can. Everything reads fine. All I can do now is check for air in my fuel and find me some Rev-X to try.
Lead Driver
Joined: Sep 2012
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From: Manteca,Ca
Still haven't answered , ICPV Injector Control Volts , this comes by way of connection/ wires , if shorting out it will give you a bad time, the ( pig tail) is the saving grace to this fix and pretty easy to do , just make sure the crimps to each wire for wire connection is done with a pull test before heat shrinking and taping all back up. The short on my truck was at the grey clip that holds the 3 wires together at the connector to the ICP Sensor, if your seeing ICPV values bouncing around with Engine warm/ hot then look into this.
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All this take about the MAP and the hose going to it, did you clear the nipple on the intake manifold as well?'
You can either use a wire hanger or the spray straw from WD-40, don't spray anything into the intake manifold.
Clear the MAP nipple and roadtest.
You can either use a wire hanger or the spray straw from WD-40, don't spray anything into the intake manifold.
Clear the MAP nipple and roadtest.
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Freshman User
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Still haven't answered , ICPV Injector Control Volts , this comes by way of connection/ wires , if shorting out it will give you a bad time, the ( pig tail) is the saving grace to this fix and pretty easy to do , just make sure the crimps to each wire for wire connection is done with a pull test before heat shrinking and taping all back up. The short on my truck was at the grey clip that holds the 3 wires together at the connector to the ICP Sensor, if your seeing ICPV values bouncing around with Engine warm/ hot then look into this.
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Yes I did. Cleared the nipple, inspected hose, even changed the MAP for the heck of it which didn't change a thing, cleaned IAT2 which was coked up pretty bad, didn't change the spuddering but helped the performance, also cleared EBP and tube, inspected tube for cracks or leaks, MAF reads ambient temps perfect and there is good flow.
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I'm running ATF in my fuel right now and am trying to get my hands on some Rev-X for my oil. Don't see any around here. Might have to order some off the web.
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I'm thinking Turbo related, unisome ring or sticking vanes, if your truck sits for a while when your on the road or long idling periods this will soot up and rust the vanes , to where they don't open and close when asked , VGT Silinoid would also be another , let's run the Turbo test , do the test like this
Koeo- ( key on engine off) make note of values
Low- ( idleing no Throttle, no HVAC, no radio) make note
High ( 2500 rpm steady ) Make note
You want to look at
1 map
2 ebp
3 baro
4 VGT
Make a note on the Values on each of the tests. And post them so we can Decipher
Scan gauge can read up to 4 values at a time , if you have a I phone app , dash boss something that you can plug into the OBD Port to monitor these sensors would be a big help for you
Koeo- ( key on engine off) make note of values
Low- ( idleing no Throttle, no HVAC, no radio) make note
High ( 2500 rpm steady ) Make note
You want to look at
1 map
2 ebp
3 baro
4 VGT
Make a note on the Values on each of the tests. And post them so we can Decipher
Scan gauge can read up to 4 values at a time , if you have a I phone app , dash boss something that you can plug into the OBD Port to monitor these sensors would be a big help for you
KOEO
Idle
2500rpm
NOTE: BARO sensor is read in Inches of Mercury. 30.7 inHg is 14.7psi.
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I found me some Rev-X!! Had to drive a 9 hour round trip to get it (its a beautiful day here and I'm off work so why not?) so I bought a year supply. 5 bottles. 2 for the first time which I'll use tomorrow with a fresh oil change and 1 for the next 3 oil changes. I also got a bottle of the Rev-X fuel additive.
Now, to get there, I figured I would try again with the Sea Foam. Instructions say 30ml to 1L of oil. The bottle has 473ml so I just dumped it all in. I am also running a full liter of ATF in my fuel. Truck has been running better gradually over the trip but still hesitates a bit after sitting a little bit like when I had dinner earlier. I am almost home with 338 miles on my fuel tank and close to 400 miles on my trip. Plenty of power, no smoke, less hesitation and spudder but still not perfect. It did get really good at one point until I got where I was going and stopped for about 20 minutes and then went for dinner about 5 miles down the road. Got me wondering about air in the fuel going away and maybe seeping back in at a stop? I don't know. Anyway I'll update as I get things done.
Now, to get there, I figured I would try again with the Sea Foam. Instructions say 30ml to 1L of oil. The bottle has 473ml so I just dumped it all in. I am also running a full liter of ATF in my fuel. Truck has been running better gradually over the trip but still hesitates a bit after sitting a little bit like when I had dinner earlier. I am almost home with 338 miles on my fuel tank and close to 400 miles on my trip. Plenty of power, no smoke, less hesitation and spudder but still not perfect. It did get really good at one point until I got where I was going and stopped for about 20 minutes and then went for dinner about 5 miles down the road. Got me wondering about air in the fuel going away and maybe seeping back in at a stop? I don't know. Anyway I'll update as I get things done.
Lead Driver
Joined: Sep 2012
Posts: 7,832
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From: Manteca,Ca
The 66 VGT has me wondering , as long as you don't see 15 on 2500 rpm and 85 on high idle , you will from time to time get 85 VGT on low idle , is this test in park ? Need to be in park no HVAC, radio, just getting the values in koeo low and high 2500 in park, the ICPV when the truck is acting up try to get those numbers, at what rpm we can guesstimate unless you capture these in park , could very well be an injector, just trying to rule out some obvious parts that do the same thing in Nature
, could very well be an injector, just trying to rule out some obvious parts that do the same thing in Nature