Am I "limping out"
I recently purchased a '03 Chevy 3500 crew cab dually w/ approx 50K miles. The previous owner put a 6" tough country suspension lift and 315/75/16 tires. It is straight piped w/ no cats or mufflers. Unknown of any other mods.
I joined the site for some info and from what I have read I sorta think my truck "limps????" when I get into it hard. She will shift perfect every time during "normal" driving, but when I START OFF full throttle OR wanna "KICK IT" to pass she will get to around 55-65 MPH and bog out near RED LINE on me not shift into high gear. If I let out on it then drive normal it will shift fine to high gear the run on up to 80-90 MPH with ease! VERY BAFFLING TO ME! Do I just need driving lessons or is something added to my truck to prevent it from being run hard like that? Any help from you guys is GREATLY appreciated! Brad - bsw4newman12 |
If it was a "limp" you would have to pull over and re start your truck to get it to shift properly. But it sounds like a limp with the exception of being able to kick to 85-90 with ease.
Usually they limp with a programmer, the mods you listed I do not think will cause a tranny limp though. |
if it goes into tranny limp it wont come out of fourth gear until you reset it by turning it off... something funky with your tranny maybe ????:humm:
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I'm no help but......
:howdy::hi: |
change the fuel filter first.
does the check engine light come on? could be an engine limp or probably an engine overboost code. i see that it is an lb7 sometimes the truck will perform funny when its making too much boost and throw a code if its not taken care of with a programer |
:howdy::howdy:
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I'm with Danny on this one kinda what mine did when i forgot to change the fuel filter for way too long
and.....:hi: |
Hey guys THNX for the warm welcome and answers. I do not get a engine light and i changed the FF like 1000 miles ago cause I ran her dry in the driveway and couldn't get her started. It looks like I should try that again... maybe my local coop is getting crappy fuel which is y it is only $1.99 gal right now! I sure am open to more advise but thanks for what I got so far!!! :U:
---AutoMerged DoublePost--- I put a BullyDog Triple Dog programmer on my truck and i got a P1093 and a P1621. Diagnose Check Engine Light Codes, Emissions And Oxygen Sensor Faults says the 1621 code is PCM memory performance.......:humm: They didn't list the 1061 so I searched google and got gm-diesel.com and some guy forum popped up and his truck does the exact same thing mine does. According to him "Auto Zone" says it is a fuel/air metering thing :humm:(X2) I am dumb enough that this still has me lost so if this helps some of u more mechanical guys to help me thanks again........ BTW......nobody responded to the other sites forum to answer that guys question..... sure am glad i found BOMBERS!!!!!!!!!!! |
Sounds like low rail pressure. CP3 could be taking a dump. :ouch:
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Yeah. it's probably the fuel filter. I had the EXACT same thing happening to mine right around 45-55 mph. i got the fuel filter replaced and it ran perfectly fine.
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