redneckgames

Dang ground wire on the harness on drivers side ! Thanks to YouTube! She is back a running

Unplugged battery. Waited a bit. Put plug tester in and no fire.

Can a live data scan tool check tps ? I obviously haven’t fixed the true issue yet. Guess it is not a coil, wire, or plug lol

Well..... shut off again. I was behind it this time. My wife was driving. Looked like exhaust went rich. Guess I’ll try throttle body next. Thinking that first time we thought it was fixed was only because we unhooked the battery to put crank sensor in. Maybe that causes the tps to reset. So what we thought was crank sensor was really just the computer resetting. oh well. We will see

Well knock sensor and cam sensor wasn’t too bad of a job. It sure needed the knock sensors and I’m sure cam sensor is a lot easier with intake off still has the miss. Maybe it’s just a coil going bad. Only does it after it warms up and under load.

Well it half fixed it fired up and drives now. But still has a stumble and no codes. Going to go ahead and put a cam sensor in it and do knock sensors at the same time.

Crank sensor fixed it

Not certain yet. It’s sitting at my dads garage right now. Crank sensor was on my list to check. figured might want to double check fuel pressure first since it is easy. Then crank sensor then throttle body. Was thinking that maybe tps failed that’s why the 1800 rpm original issue. If you try to start it now it shakes and stumbles like the motor doesn’t know where it is. So maybe crank sensor is the culprit....

And Now it is dead and won’t fire up. Any suggestions on where to start would be nice.

Our 04 suburban just recently developed a miss and stumble that is stumping me. 5.3 flex fuel. At about 1800 rpm you can fill a slight miss. Just a bit of a hesitation is all and it is not constant. But sometimes it will start a bad stutter to where it feels like the motor has dropped 2 or more cylinders. It will last a couple of seconds. Most of the time it will recover if you let off or give it more pedal. yesterday it done it with my wife to the point it killed the motor. But she was able to start it right back and it drove fine. My dad drove it yesterday while I was watching live data in my cheaper scan tool to see if anything obvious showed up. But I couldn’t tell. In 30 minutes of driving it only done the stutter once but he said he could fill a miss at other times. only engine code that is showing is the knock sensor bank 2. It has came and gone for a couple of months. I bought the stuff for it but haven’t took time to put them in. From what I have read it shouldn’t cause the problem I’m having. Any ideas? If these were cable driven I would suspect a problem spot in the tps. I guess that could still be the problem. Is there an easy way to test the drive by wire throttle body? Any other suggestions?

Taurus 709 slim. Wife carries an S&W M&P Shield 9mm.