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02-15-2016, 01:47 PM
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Ford Truck Driver
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Join Date: Feb 2016
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Engine almost stalls
I can't figure out why my engine feels as if it's going to stall whenever I stop. It never has yet. Just want to fix this issue. Any help would be greatly appreciated.
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1997 ranger xlt 2.3L 2wd
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02-15-2016, 02:19 PM
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Road Trippin' King!
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Join Date: Nov 2009
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Re: Engine almost stalls
First step, clean your MAF, change the air filter. That is what caused it in my 97. Mind you I have the 4l V6, but the engine management is the same. Don't use brake clean, there is MAF cleaner at the parts store, get that and clean it good. Don't use anything that will leave stuff on the MAF such as paper towels, or damage it like a wire brush.
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97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!
Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens
I think Henry just shit himself
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Quote:
Originally Posted by Radness
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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02-15-2016, 03:14 PM
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Ford Truck Driver
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Join Date: Feb 2016
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Re: Engine almost stalls
Is this the same as the iac valve?
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1997 ranger xlt 2.3L 2wd
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02-15-2016, 04:32 PM
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Ford Tough
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Join Date: Oct 2012
Posts: 420
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Quote:
Originally Posted by reconrangerll
Is this the same as the iac valve?
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No that's different. MAF will be somewhere on your intake hose and the IAC is usually on your throttle body.
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2003 v6 4.0 4x4 xlt extended cab
manual transmission 135000 miles
29x12x16 tires bilstein 5100 shocks
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02-16-2016, 05:43 AM
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Ford Truck Driver
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Join Date: Feb 2016
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Re: Engine almost stalls
OK thanks. I will try that this weekend.
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1997 ranger xlt 2.3L 2wd
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02-16-2016, 06:42 AM
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Ford Ranger Driver
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Join Date: Aug 2015
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Re: Engine almost stalls
I would check the IAC before suspecting the MAF. The MAF responds to air flow, and sends its signal to the computer. Unless it was totally dropping the signal, at idle the air flow would be minimal. It is not changing appreciably, so should be a more 'solid' signal level. Dirty MAF generally shows up when accelerating, as the flow through the MAF is changing as the rpm's increase. Dirt can prevent the MAF from 'knowing' the air flow has changed as it will insulate the hot wire from air flow effects(cooling), so it is not really involved in idle problems significantly.
A dirty IAC will not respond to command from the computer will. You might not have a cold fast-idle, or the engine may stall with A/C engagement or steering wheel turning if power steering is installed.
A MAP can also cause poor idle, but it will 'wander' all over the rpm range as the computer diddles with the fuel:air mix in response.
tom
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03-01-2016, 02:13 PM
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Road Trippin' King!
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Re: Engine almost stalls
Quote:
Originally Posted by tomw0
I would check the IAC before suspecting the MAF. The MAF responds to air flow, and sends its signal to the computer. Unless it was totally dropping the signal, at idle the air flow would be minimal. It is not changing appreciably, so should be a more 'solid' signal level. Dirty MAF generally shows up when accelerating, as the flow through the MAF is changing as the rpm's increase. Dirt can prevent the MAF from 'knowing' the air flow has changed as it will insulate the hot wire from air flow effects(cooling), so it is not really involved in idle problems significantly.
A dirty IAC will not respond to command from the computer will. You might not have a cold fast-idle, or the engine may stall with A/C engagement or steering wheel turning if power steering is installed.
A MAP can also cause poor idle, but it will 'wander' all over the rpm range as the computer diddles with the fuel:air mix in response.
tom
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I would agree to that except I had it happen first hand, and had a few others with the same issue. As you roll up to a stop it would bounce RPM all over the place. It wasn't until two years later and a cleaning that I needed to change my IAC. But also a good spot to check.
__________________
97 Ranger - 4.0 V6 auto, 4wd, 31x10.5x15s Wild Country XTX Sport All Terrains, Warn locking hubs, Pioneer deck with iPod attachment, Snugtop Topper, K&N filter, scan gauge II, Hella 500 Lights, More parts coming, waiting for the paycheck to get bigger!
Truck built in loving memory of Norm Howard
Outcast Racing
PNW Crew!!!
Afterhours Clan!!
Quote:
Originally Posted by aaron_ariens
I think Henry just shit himself
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Quote:
Originally Posted by Radness
Its kind of like that carnival game "Whack A Mole" but with guns! Haha
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03-01-2016, 10:47 PM
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Ford Ranger Driver
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Join Date: Aug 2014
Posts: 933
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Re: Engine almost stalls
buy a new MOTORCRAFT IAC VALVE.
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