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  #1  
Old 06-21-2012, 07:58 AM
mile high 2.3 mile high 2.3 is offline
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Default hesitates when at full throttle

I have a 1994 ford ranger. ( 2.3l) my problem is that it hesitates when given full throttle. It feels like the fuel supply is cuttin out or somthing. I replaced tps, spark plugs, plug wires, crankshaft censor and air filter too. I have also checked the maf, coil packs, and intake air temp sencor. Any thoughts?
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Old 06-21-2012, 08:00 AM
FireRanger FireRanger is offline
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Default Re: hesitates when at full throttle

That's a lot of money to blindly and randomly throw at the truck. Wish I had that kind of cash.

Check your fuel pressure. It should be 35 psi.
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  #3  
Old 06-21-2012, 08:02 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

Quote:
Originally Posted by mile high 2.3 View Post
...Any thoughts?
replace fuel filter?

Last edited by RoberticusMaximus; 06-21-2012 at 08:03 AM. Reason: just a thought
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Old 06-21-2012, 08:14 AM
mile high 2.3 mile high 2.3 is offline
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Already replaced the fuel filter
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Old 06-21-2012, 08:16 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

this thread might help...
http://www.fordrangerforum.com/4-cyl...-throttle.html
lolol
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  #6  
Old 06-21-2012, 08:16 AM
mile high 2.3 mile high 2.3 is offline
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Fuel pressure is good as well.
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Old 06-21-2012, 08:18 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

did you accidentally create two identical threads? not trolling, just curious...

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and curious to what the problem is with your truck...
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  #8  
Old 06-21-2012, 08:24 AM
mile high 2.3 mile high 2.3 is offline
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Boggs when at full throttle, feels like running out of gas
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Old 06-21-2012, 08:28 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

maybe a nice intake cleaning, seafoam?
i personally can't wait to do mine!
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  #10  
Old 06-21-2012, 08:34 AM
mile high 2.3 mile high 2.3 is offline
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I cleaned the throttle body if thats what u mean.
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  #11  
Old 06-21-2012, 08:37 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

yeah, you can run seafoam through the brake booster vacuum line, or just take it apart & clean it.

what else have do done to it (that you didn't mention in the opener)?
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  #12  
Old 06-21-2012, 08:52 AM
mile high 2.3 mile high 2.3 is offline
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Do the lobes on the cam wear out
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Old 06-21-2012, 08:53 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

Quote:
Originally Posted by mile high 2.3 View Post
Do the lobes on the cam wear out
not sure how they wear...

also not sure if i've ever had mine WOT past about 3000 rpm.
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Old 06-21-2012, 08:56 AM
mile high 2.3 mile high 2.3 is offline
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Can the fuel pump be going out, when its out of gear it runs fine but when pulling itself it lags/ cuts out
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Old 06-21-2012, 08:59 AM
RoberticusMaximus RoberticusMaximus is offline
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Default Re: hesitates when at full throttle

most certainly! if you were to have to replace that, you'd have a new truck! with all the parts you've replaced, that is...

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on my old ranger, the fuel pump would cut out up hills. got worse and worse until it couldn't pump enough fuel pressure to start it (it was a diesel though - little different probly)
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