Freightliner won't go over 45mpg

Asked by Rich3977 Jan 16, 2017 at 11:04 AM

Question type: Maintenance & Repair

My 01 freightliner car carrier with a cat
engine will not go over 45 mph. All gauges
and fluids are ok. Everything seems normal
except that it just will not go above 45 and
even slower in the hills. Engine sounds
good and Rpms are normal also. What
could cause this to happen?

6 Answers
30

GuruYTL8K answered 6 years ago

I got freighliner centery 07 and i got this '!!' an a dash board flashing,what my be? Evrything run great

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60

GuruC2T1C answered 5 years ago

I got a 1994 freight liner it’s wont taken of after stop for traffic lights,what can be the cause of that problem?

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90

Mike answered 5 years ago

I have a 2006 Peterbilt 335 C7 Acert 6 speed Allison trans, same symptoms won't go over 40 MPH randomly had engine code for loss of vehicle speed input. Only thing I've found to help is changing the fuel filter but then it happens again in an hour or so. Any suggestions?

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Guru99GWJ6 answered 4 years ago

I have a 2004 ITASCA C7 Acert 6 speed Allison trans, same symptoms won't go over 15MPH Any suggestions?

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