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Loss of power

Will L.

Well-Known Member
Messages
8,870
Reaction score
8,981
Location
Boulder City Nv
Even sitting, no load?
Pull codes- could be some stored or pending without light.
Clean AirFilter?
Any smoke?
Any recent work done to it?
Details help.
 

Jack G

New Member
Messages
4
Reaction score
1
Location
NJ
Even sitting in park won’t go over 2000. Definitely going into a limp mode won’t shift into higher gears
Feeling the arctic blast last two days. But this started few days ago temp was above freezing and I had plenty of fuel treatment in both tanks
I have to get someone with a good code reader to check for current or saved codes My cheap one not reading any codes
 

Jack G

New Member
Messages
4
Reaction score
1
Location
NJ
No smoke starts and idles fine takes off with dull power from a stop but won’t go over 2000 rpm in any gear
I’m changing filter and filter housing in case there’s a leaking o ring
People on other forums have suggested faulty map sensor but when I went to local Napa parts house I was told they don’t list a map sensor for this truck. Only a maf sensor
 
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