96-1500
Bluenoser
Hey folks,
I've been doing some searching and I can't seem to figure out what's going on with my truck. It's a 5.7L vortec in a 1996 3/4 ton. The engine will roll over forever, but will not start, sometimes the odd kick, but not close to starting. Pull off the air filter crap, dump a little gas in, and she'll start right up, but if you jump on the throttle she backfires and dies, the only way to get it to rev up is to slowly get on the gas. It sometimes quits when you put it in gear too. But in park it will idle all day. Then when you shut it off (or when it quits), doesn't matter how long it's been running, you can't get it to go again. Gotta do the whole dump gas in routine again. Quite embarrassing in city traffic lol.
Now of course my first instinct was fuel pump/filter. Replaced the filter, and she's got around 55 PSI fuel pressure. Good spark, replacing the spark plugs and wires anyway but I don't think that has anything to do with it. There is no check engine light on, and the only code my friend's scan tool brought up was a bad o2 sensor.
Anybody have any clue as to what's going on? I'm sorry if this has been posted before, but the search function on GMT-400 was not working for me at all for some reason. Google didn't help much either.
Thanks in advance.
I've been doing some searching and I can't seem to figure out what's going on with my truck. It's a 5.7L vortec in a 1996 3/4 ton. The engine will roll over forever, but will not start, sometimes the odd kick, but not close to starting. Pull off the air filter crap, dump a little gas in, and she'll start right up, but if you jump on the throttle she backfires and dies, the only way to get it to rev up is to slowly get on the gas. It sometimes quits when you put it in gear too. But in park it will idle all day. Then when you shut it off (or when it quits), doesn't matter how long it's been running, you can't get it to go again. Gotta do the whole dump gas in routine again. Quite embarrassing in city traffic lol.
Now of course my first instinct was fuel pump/filter. Replaced the filter, and she's got around 55 PSI fuel pressure. Good spark, replacing the spark plugs and wires anyway but I don't think that has anything to do with it. There is no check engine light on, and the only code my friend's scan tool brought up was a bad o2 sensor.
Anybody have any clue as to what's going on? I'm sorry if this has been posted before, but the search function on GMT-400 was not working for me at all for some reason. Google didn't help much either.
Thanks in advance.