exhausted with exhaustion

[turk182]

Could someone please help me out I'm having a problem with my exhaust. It keeps poppin during hard or mild acceleration. I just got a new catalytic converter put on so i don't think that's the prob. but you can tell when accelerating that she isn't breathing the way she is suppose too. It feels more like an exhaust problem than an intake, but any insight would be helpful

[Infinitiguy19]

is it a loud pop like a back fire or just something lose on the exhaust?

And as usual service history Please so we can further help you.

[elwesso]

is it that the intake feels restricted? Basically like the vehicle is clogged up somehow?

We definitely need more information.. Did you ever have any injectors go bad or something along those lines?

[konatown]

Do you get a CEL that comes on after cruising 40-70mph? If so check your EGR hoses, probably have a vacuum leak.

[StarPD]

Sounds like a vacuum leak to me, probably an age-hardened vacuum hose that cracked or even broke off from its connector.

Do a vaccum test while the motor is running at idle in Park and report what vacuum reading you get.

Do not ignore this problem or put off diagnosing and repairing it. A vacuum leak will make your car run lean, even with 02 and knock sensors. That can create detonation, which can break rings, hole pistons, and batter bearings, expensive to repair.

I'd hate to see anotherwise good Q45 turned into a parts car because of indifference or procrastination.