nobbyv
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- Dec 4, 2007
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Hey guys, hoping someone can help: '97 Ranger 2.3L that I bought a few months ago as a Home Depot/dump-run truck.
The issue that I'm having is that before the engine has a chance to warm up, it will stall out after I rev it. So it starts fine, and will happily idle forever. But as soon as I give it some gas, it revs up but then falls down too far and stalls (I can "catch" it with the throttle, but as soon as I let off the gas it stalls). It's then very hard to restart immediately. After the engine has been warming for 5-10 minutes, all is good.
I've replaced: IAC valve (my first guess), all 8 plugs, wires, air filter, fuel filter and O2 sensors. I pulled the MAF, and it looks SQUEAKY clean (as in the previous owner must have replaced it within the last 5k or so), so I ruled that out.
Checked fuel pressure, seems OK. I got a nice 12-14" stream of fuel when I pressed on the Shraeder valve with the key in the "ON" position.
I also spent a good twenty minutes with a can of carb cleaner looking for vacuum leaks, and couldn't find any.
Anyone have any other thoughts on what to check?
The issue that I'm having is that before the engine has a chance to warm up, it will stall out after I rev it. So it starts fine, and will happily idle forever. But as soon as I give it some gas, it revs up but then falls down too far and stalls (I can "catch" it with the throttle, but as soon as I let off the gas it stalls). It's then very hard to restart immediately. After the engine has been warming for 5-10 minutes, all is good.
I've replaced: IAC valve (my first guess), all 8 plugs, wires, air filter, fuel filter and O2 sensors. I pulled the MAF, and it looks SQUEAKY clean (as in the previous owner must have replaced it within the last 5k or so), so I ruled that out.
Checked fuel pressure, seems OK. I got a nice 12-14" stream of fuel when I pressed on the Shraeder valve with the key in the "ON" position.
I also spent a good twenty minutes with a can of carb cleaner looking for vacuum leaks, and couldn't find any.
Anyone have any other thoughts on what to check?