2001 Ford Explorer Sport Trac.

[Chibbzee]

So, I thought I had fixed my problem. Apparently I have not... Anyhole, here's a small back story. Ok. Not really a back story. Check engine light popped on. Read the code(s). Lean bank 1 and bank 2. Truck stumbles on starts (cold or hot) really bad. Once it gets passed it, it runs normal as long as you don't go under a load. Roughly 75% throttle and up. It just sort of stops going and pulls power. Just kind of falls on it's face like it is missing, but it isn't. I've cleaned the MAF and have used nothing but Shell and Chevron for like 6 years. Not sure what it could be. Oh and my fuel pump is irregularly loud and whiny...

This problem has happened before and what I've done fixed it, but not this time. I'm stumped. Thinking my fuel filter is clogged. I changed it last time it happened and it worked for awhile...

Again, vehicle is a 2001 Exploder Sport Trac. 4.0L V6. Automatic. 196,xxx miles. Fuel pump was done about 2-3 years ago. Plugs and wires were done about 6 months ago.

Any ideas? Feel free to ask questions.

 

[Orange 94]

Check the fuel filter,pump, injectors?

Coil?

How old are you oxygen sensors?


I'm thinking its something to do with your fuel system judging by the codes and problems.

 

[Chibbzee]

Check the fuel filter,pump, injectors?

Coil?

How old are you oxygen sensors?


I'm thinking its something to do with your fuel system judging by the codes and problems.

I'm 100% sure it's fuel. I just don't know where exactly. I'm going to start cheap and start with the fuel filter and go from there. If that doesn't work, do a fuel pressure test to narrow some stuff down.

 

[Awtblo]

Both banks lean usually indicates a vacuum leak, I'd start looking at the intake and its vacuum lines, the plastic intakes on the 4.0s tend to warp, and I've replaced a lot of gasket sets

 

[Chibbzee]

Both banks lean usually indicates a vacuum leak, I'd start looking at the intake and its vacuum lines, the plastic intakes on the 4.0s tend to warp, and I've replaced a lot of gasket sets

I didn't even think of that. I'll check that out too. Thanks!

 

[Stad95GT]

Check these guys out, they have alot of helpful people on there- http://www.mysporttrac.com/mysporttrac/

I've been a member since 2001 with my first ST; on my 3rd ST now.

 

[Chibbzee]

Check these guys out, they have alot of helpful people on there- http://www.mysporttrac.com/mysporttrac/

I've been a member since 2001 with my first ST; on my 3rd ST now.

Thanks! We've had ours since 2001 and it has never let me down. Even when it should, it still runs. Haha. Going to register now!