I have been helping a friend trouble shoot his 2016 Ranger 1000 and we are both completely baffled now. Before he drives the 2hrs back to the dealership, I thought I would ask for some help or ideas of things we may have missed. He allowed someone to wash his ranger a couple of days ago and immediately after washing, it was running rough, hard idle and throttle surges. We unplugged all connectors, opened all fuses and fuse plugs, pulled spark plug caps and CDI box plugs and cleaned with CRC Electrical cleaner, allowed to dry and applied dielectric grease, before plugging them all in. It started to run a lot better and even the check engine light went off. A few hours later the check engine light came back on and the it would idle erratically. The machine does not throw any codes, only the check engine light. Any suggestions or areas you can think we missed. Thanks.

/r
JD

 

Whether it's the diesel or General 1000 about the only other thing I could add is check the tank for water. After what all you've done,sounds like quite a bit also,that'd be my best guess.Either that or water got directly inside the ecu or something else. Plus the fuse holder,relays aren't the best things to get wet no matter which model and can short out or have erratic problems. This sounds like a good job for Digital Wrench to at least narrow down where the problem could be. Better than guessing and spending more time on it and probably come up empty handed. Plus fire the guy that used a power washer on it..

 

Yea, I think he has already been fired. LOL! We were actually planning on draining the tank this afternoon as our last ditch effort. I'm with you now, I think he should take it on to the dealer and let them put their electronics on it and see if they come up with anything. Thanks for the info. Take care.

JD

 

If fresh gas didn't help I'd load that sucker up. No sense in fighting one when you don't have to.

 

We did. Waiting on results from dealer. Thanks for the info. I'll try to remember and post the results.

 

OPT, sorry for the long delay in response. My buddy finally got his ranger back from the dealer and it turned out to be water in the throttle body. The dealership replaced the entire throttle body and everything runs just fine. Perfect example of not letting anyone pressure wash your rides.

 

Yes the throttle body doesn't like water especially the tps sensor that can short out. In some cases like this it's cheaper labor wise for dealers to replace the whole assy than take a chance on replacing just the sensor itself along with calibrating it and then it still screws up.