[Shadow662]

My ranger has been starting hard recently. Will start then stall out. Have to turn the key on and off multiple times. Then crank a bunch to get it to start.

I thought maybe was the IAC harness because one of the wires broke off. Replaced harness.

Still starting hard. Anyone help me out with this?

 

[fswan]

Sounds like you are on the right track, check your fuel pump pressure at startup as well as when it is hot - should be 45 psi +/- 2 psi at all speeds, cold and hot. Hope like heck that isn't your problem 'cause there are no after market fuel pumps for the '11 800!

 

[Jungleman]

I believe you guys are on the right track......Amazon.com: Actron CP7838 Professional Fuel Pressure Tester: Automotive

Best 42 dollars you can spend if you own a Ranger..........

 

[Shadow662]

Thanks for the help. Seeing the price of the pump, I will figure out a way to run a inline pump, if that's what it is. The price is bull!

 

[POS POLARIS]

could be your oil pressure relief valve starting to stick on you. if it starts, then you give it some gas and it dies, and when it dies it cranks over really fast like no compression, then you've got an oil press relief valve stuck in the closed position.

 

[Shadow662]

That sounds exactly what its doing POS POLARIS. Where is this valve you speak of?

 

[POS POLARIS]

directly below the exhaust manifold, there's a bolt that takes a 15mm wrench. take it out. followed by a spring, and then the piston (if you can get it out) if it won't come out with a pen magnet, you may have to start the engine briefly to see if it'll fire it out with engine oil pressure. helps to have a helper so you can find the piston when it comes out.

once you get it out, look the piston over for any signs of galling, or streaks in the piston. you could replace it with new and try it. they're very cheap, like $5

if that doesn't take care of it, you may have to sand .001 in off of it and put it back in . only way to verify for sure it's high oil pressure causing the problem is to tap into the oil galley with an oil press gauge