Diagnosis of Gremlin
01-16-2012, 01:01 PM
#1
Diagnosis of Gremlin
Alright guys, I'll try to keep this short by sticking to the minimum. I have a 2006 KingRanch with ~65k miles.
Originally when I tried to pass people or get up to speed on an on-ramp my truck would stutter and lose power (misfiring). I took it in and had my local mechanic, who I trust reasonably enough, replace the plugs with SP-515's (only broke 1 plug). It was still missing but worse...truck would start shaking, lose power, and making noises all the time. It eventually threw a code and I took it in again. It said cylinder 3 & 7 were missing so he replaced the COP's on those cylinders. It was still misfiring, and check engine light was flashing...I brought it in again but the code didn't store!?
Is it a bad plug? Another bad COP? Any/all input appreciated...thanks.
Originally when I tried to pass people or get up to speed on an on-ramp my truck would stutter and lose power (misfiring). I took it in and had my local mechanic, who I trust reasonably enough, replace the plugs with SP-515's (only broke 1 plug). It was still missing but worse...truck would start shaking, lose power, and making noises all the time. It eventually threw a code and I took it in again. It said cylinder 3 & 7 were missing so he replaced the COP's on those cylinders. It was still misfiring, and check engine light was flashing...I brought it in again but the code didn't store!?
Is it a bad plug? Another bad COP? Any/all input appreciated...thanks.
01-16-2012, 01:07 PM
#2
Senior Member
Alright guys, I'll try to keep this short by sticking to the minimum. I have a 2006 KingRanch with ~65k miles.
Originally when I tried to pass people or get up to speed on an on-ramp my truck would stutter and lose power (misfiring). I took it in and had my local mechanic, who I trust reasonably enough, replace the plugs with SP-515's (only broke 1 plug). It was still missing but worse...truck would start shaking, lose power, and making noises all the time. It eventually threw a code and I took it in again. It said cylinder 3 & 7 were missing so he replaced the COP's on those cylinders. It was still misfiring, and check engine light was flashing...I brought it in again but the code didn't store!?
Is it a bad plug? Another bad COP? Any/all input appreciated...thanks.
Originally when I tried to pass people or get up to speed on an on-ramp my truck would stutter and lose power (misfiring). I took it in and had my local mechanic, who I trust reasonably enough, replace the plugs with SP-515's (only broke 1 plug). It was still missing but worse...truck would start shaking, lose power, and making noises all the time. It eventually threw a code and I took it in again. It said cylinder 3 & 7 were missing so he replaced the COP's on those cylinders. It was still misfiring, and check engine light was flashing...I brought it in again but the code didn't store!?
Is it a bad plug? Another bad COP? Any/all input appreciated...thanks.
My dads 2006 used to do that. He took it in and the fuel filters were plugged up. He had them changed and it solved the problem immediatly
01-16-2012, 04:08 PM
#3
Mark
iTrader: (1)
Clogged CAT....
01-16-2012, 04:28 PM
#4
Thanks for the input. I just changed my fuel filter...it was about time anyways. Fingers crossed it works. I'll report back after I test drive for a couple days.
Last edited by callaway29; 01-16-2012 at 04:44 PM.
01-16-2012, 07:24 PM
#7
If it was a coil, wouldn't it throw a code for that cylinder? Do Ford dealerships have the capability to test for exhaust restrictions? In my research, I found that a clogged cat can be verified with a vacuum test...?
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01-16-2012, 09:03 PM
#9
Thanks for ur input lariatboy, I'll take a look underneath the spare tire tomorrow and take it from there...if there is a lot of corrosion I might look into replacing. I did a quick google and it appears it's only a $100 part, and most likely a DIY job. Are they still on backorder everywhere?