ENGINE RUNS ROUGH

Had Replaced Back 3 Exhaust Manifold Bolts(2 Drivers Side, 1 Passanger Side)at A Repair Shop. Now It Runs Really Rough And Has No Power....

Fuel Pump Pressure 60 Psi With Key On. If You Put Gas In The Throttle Body And Start The Engine The Pressure Is About 50 Psi Until Fuel Is...

My Ram Has Started Running Very Rough With A Huge Loss Of Power At Times, Sometimes There's A Knocking Sound. I Have Also Noticed Smoke...

I Have An Issue Of Where My Ford Will Run Real Rough When Engine Is Warmed Up. It Will Run Ok Then When Warmed Up It Will Miss And Sometimes...

Okay, My Timing Chain Came Off So I Put Back On With New Tension-er's And Guides And Double Checked It Put All Back Together. Start...

My Truck Has Recently Began To Run Very Rough And Choppy When Cruising Between 1200 And 2500 Rpm, But Runs Smooth As Ever When Accelerating...

We Have An 02 Silverado 6 Cyl With About 90k Miles. When We Drive Through A Good Sized Puddle, And Especially When We Went Through An...

Strong Gas Smell As If Too Much Fuel Is Being Injected. Car Isn't Driven Much Just Every Now And Then.

Electrical Problem 1998 Mazda 626 4 Cyl Front Wheel Drive Manual 120k Miles I Just Got My Oil Changed, Spark Plugs Changed, Air...

Engine Performance Problem 2003 Volvo S40 4 Cyl Front Wheel Drive The Car Was Running A Little Rough When We Bought It(used Of Course...