I'v been trying to track this down for some time now testing different theories and am stumped

Some time ago I notice on a few different occasions that when I am say going from one freeway to another on a long right hand exit ramp as I come out of it my pace car stumbles like it is starved for fuel

**insert nascar life joke make only left turns***

Stats
01 monte carlo ss pace car 3800 n/a
193k currently been keeping and eye/ear on it for about 10k

Stock except for 3in catless down pipe with 26in glass pack as resonator

no code (cel) except for the occasional rear o2 one since it is no longer in the exhaust stream

plugs have been changed durring that time, plug wires have been checking to make sure still in spec and on correctly,

Redid my vacume lines off the Throttle body, as they were brittle and near the breaking point

Regular oil changes(does burn abiut 3/4 quart between changes), air filter changed

Watched coolant level (no change)

Does not matter if fuel is full,nearly empty or anywhere inbetween

I'm just stumped at this point not sure where to go from here so looking for a little guidance and opinions


Thanks in advance

 

Hi `Justin,
When is the last time you changed your fuel filter ?

(Just a guess on my part)...

Here's some links you may want to check out.
I hope one of our member's can help you...Good Luck
Strange Issue Rough Running/Stalls Out - Monte Carlo Forum - Monte ...

 

Fuel filter is about 7k old forgot to mention that in original post

 

Hi Justin, Here's just another thought...Grandpa Spaces old GMC Pick up would do that on left hand corners and stumble like it wasn't getting gas & later found it was debris in the gas tank & when the truck would lean it shifted the debris in the tank and it blocked the fuel pick up.. I also heard that it's a sign of a fuel pump going bad or getting clogged. That's all that falling outa of my mind...It's empty now (lol)
Good Luck on finding the mystery problem