LTX

Today i was on the I-75 interchange to I-95 and while i was going up vertically(wasn't very steep) the car was hesitating a little and i always run 93 octane but the strange thing is it never done it before. Also when i rev it as soon as i push the pedal i hear & feel a thumping in the engine, is this pinging? and how bad of an issue is this?

Thanks

shbox

Pinging sounds like a marbles rattling in a can or similar to the sound a diesel can make. Sounds like you might have encountered a bad miss/backfire.

LTX

Could the opti be going bad?

thanks

05HD

Sounds like your Callies xl crank isn't getting along with your "callies or carrillo" rods.

guppymech

iTrader: (7)

Did you just fill the tank up? Maybe you got some bad gas.

lt1slowz28

what in the hell are you talking about now?!

LTX

Lets not get off topic! i was simply asking about the hesitation my car makes going up hill.

lt1slowz28

okay, how about you describe the symptoms better, is it pinging, IE sounding like a can of spraypaint is being shaken really fast... or is it missing ( muffled, kind of like a puff of air in between regular engine noise) ... or none of the above...


are you using 93 octane? have you checked any of the plugs to pinpoint? EGR working? all sensors fine?



you need to do your part on this and properly diagnose that nasty blue camaro of yours...

LTX

Your damn right its nasty, did you not read my previous comments on this thread? all sensors are fine(knock sensors, ect.. I mentioned on my first comment i run 93 all the time and ill say it again. When i rev the engine sometimes, as soon as i push the pedal i hear & feel a thump sound in the engine. This sound doesn't go on, it doesn't repeat. it only does it once, as soon as i push the pedal fast. And i was also feeling a hesitation going up hill almost feels like its losing power.

CamaroRacing12

iTrader: (5)

mine has done this before as well. it turned out to be nothing.

lt1slowz28

Throttle lag? Sounds like a light miss / hesitation ...

quik95lt1

iTrader: (7)

if it sounds like popcorn popping in a pan and gets worse with load its detonation........sounds like you have just a plain ole misfire.....seems like its worse when you are stompin on the throttle......fuel filter clogged? fuel pressure good? im voting on some type of fuel delivery issue.......check the regulator also.......gotta be something along those lines....