4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

engine stalling/running rich

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Old 02-08-2006
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engine stalling/running rich

As the title says, my engine is stalling hardcore...

When i come to a light its ideling between 100-500rms for about 5 seconds (and its sorta bucking) then it dies completly. Then when i goto start it, i have to put some pressure on the pedal or it will not run at all. Also, if i put it in N while going above 30, it acts normal. But under like 15 it starts to stall )and recover) and stalls at around 5mph if in N. If its in D, then it wont stall till 5 sec after i stop.

when i pulled into my garage, u could smell it.. (running way to rich)


Background info...
Had an intake on there for a while... took it off last night. It was working fine till around 5 this evening.

Since then ive gone through the basic to do's like Fuel cut off, Restart battery, Clean the MAF, and clean the connections...

what should i do next?

(maybe i didnt restart the computer correctly???
 
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Old 02-08-2006
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try to leave the battery disconnected overnight... did you use electrical cleaner on the MAF to clean it?
 
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Old 02-08-2006
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Originally Posted by gatorblue92
try to leave the battery disconnected overnight... did you use electrical cleaner on the MAF to clean it?
yep...

alright, ill try the overnight idea
 
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Old 02-08-2006
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any others?
 
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Old 02-08-2006
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What is runnin rich mean...

I had this problem with e little water in the engine...
 
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Old 02-08-2006
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It doesnt take more than 20min to reset the computer.
Maybe your idle air controller is going bad.. do you hear
a humming or howling sorta like a cow or whale? when you start it sometimes?
What did you clean the maf with?
what procedure are you relearning the idle with?
 
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Old 02-08-2006
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Originally Posted by Rand
It doesnt take more than 20min to reset the computer.
Maybe your idle air controller is going bad.. do you hear
a humming or howling sorta like a cow or whale? when you start it sometimes?
What did you clean the maf with?
what procedure are you relearning the idle with?
yea i undid the battery for 1 hr..


I know it isnt the IAC because it would stall if i put it in N at 50 or 5...


what do u mean by relearning the idle?
 
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Old 02-08-2006
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hmm ya kno, it could be the fuel sending unit or the pump... or is that the same thing? LOL sorry i am by no means a mechanic, but sounds to me like the engine isnt getting enuff fuel, so the computer is adjusting the fuel air mixture to maximize the power output of the little fuel its getting.... tho, wether that has any grounds at all heh, dont ask me, it sounded good.... while on this, maybe its the fuel filter....
 
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Old 02-09-2006
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Bumpity... Calling Bob and John! (where did I put the John signal again...better call the commish)
 
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Old 02-09-2006
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i fixed it...

i did some steps and all signs were pointing to a dirty maf.. so i went to radio shack and bought a can of contact cleaner with a lil brush on it...

and i wasnt really hopeful since i cleaned it last night but it actually worked.. it runs fine now...


thx for the help yall
 
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