Running rough after bad fuel

[Hippie66]

I recently bought a fairly clean '89 MJ, 4.0, 5 speed. It's been running great, until this weekend.

 

To start out... Fuel gauge was not working when I bought the truck, fuel pump was noisy. I replaced the pump with one from O'Reilly's (Slight modification to bracket to make it fit properly). Also repaired a bad wire and got the gauge working.

 

I ran about 13 gallons out of the tank. The last few miles, it was cutting out and really down on power, but made it home.

 

Replaced the inline fuel filter. In doing so, I had some nasty fuel poor out of the old filter. Red and rusty looking. Also replaced the spark plugs.

 

Still not running right. Could the bad fuel have cause issues with a sensor, or do I need to pull the injectors and clean (or upgrade) them?

 

Thanks

[shelbyluvv]

If you had rust in the filter you probably have it in the sock. Pull the pump and check the sock.

[Eagle]

You probably also have more bad gas in the tank. Remember, water is denser than gasoline -- it settles to the bottom of the tank, which happens to be where the pickup is located. In addition to checking (or, better yet, just replacing) the sock, you may need to siphon all the fuel out of the tank to be sure there's no more water in the bottom.

[Hippie66]

Thanks for the quick replies. I'll drain the tank and drop it out so I can rinse it out good.