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  #1  
Old 07-08-2012, 04:39 PM
orokusaki orokusaki is offline
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Default 00 idles low then dies, only when hot

Hey I've been having trouble when it's hot out. I'll run some errands and when I get into my car to start it is idles really rough and low. The gauge for my battery looks like the voltage is low then if I press and hold the gas it runs fine, as soon as I let off the gas or try to put it into gear it goes low again or dies. I've replaced the battery and cables, not really sure whats going on... Thoughts?

It's a 2000 6 cyl 4.0 with 105500 miles auto tranny
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  #2  
Old 07-11-2012, 02:49 PM
blhde blhde is offline
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Default Re: 00 idles low then dies, only when hot

Its an intermittent ignition issue.



Im trying to figure out a 95ex 4.0 that's doing it right now.
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99 x-cab 4x4 4.0l auto
mods, cranked t-bars, silencer delete, k&n drop in, Trans Go stage 3 shift kit,3200stall Fuddle Racing Torque Converter,
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  #3  
Old 10-09-2012, 06:42 PM
k5tpa k5tpa is offline
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Default Re: 00 idles low then dies, only when hot

Wow, I have the same problem. What fixes it??
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  #4  
Old 07-14-2013, 08:28 AM
ragnarock ragnarock is offline
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Default Re: 00 idles low then dies, only when hot

My 99 4.0 had this problem for several months. I was getting PO171 & PO174 codes intermittently. Ran fine when cold, maybe a little low, but would just die when it was hot or running A/C. I changed plugs, PCV, fuel treatments, etc. Having read posts about all the different things causing these problems, i was going in all different directions. The ranger's computer finally gave me one fixed code, PO1507. This code pointed me the IAC valve, idle air control valve. I replaced it for $42 from autozone, have had no issues for several months now.
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