sounds like a vacume leak! check your vacume lines and block off the brake booster line. may be a defective booster.
You Probley have a blowed head gasket.
Sounds like a fuel problem. First change the fuel filter. If the problem presists after this, look at other areas such as the fuel pump, fuel pressure regualator, etc.
Could be as simple as a good tune up.
have the fuel pess. checked
Clean the MAF sensor with CRC MAF cleaner.
Pushing to much boost maybe?
Check the air filter to see if it is stopped up. Check all the vacuum hoses for a leak. Replace the PCV valve.
My 2002 V6 XLT started to sputter after driving to the parts store (so it was after it warmed up). I could feel and hear the idle was off and when I would push down on the accelerator I could feel the sputter struggle of the engine. Also when I drove it home it would sputter while stopped at lights and accelerating. I ended up cleaning my MAF also looked at changing the coil, but I wanted to check my plug wires and found a leak in #3 plug wire where I had a P0303 code (#3 cylinder misfire). I changed my plug wires for $35 (Napa) and it runs great! I wanted to add a picture of where the leak is on the old #3 plug wire, it was about 7in from plug boot, it is the only abnormal color on the wire.
Running shoes and running shorts.
TCC Solenoid.
Started is the past tense of start.
Running boots.