94 ranger idle problems
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Senior User
Joined: Jul 2003
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From: Virginia
94 ranger idle problems
my 94 2.3 5 sp 2wd is having problems idling. it starts easy and will idle good (maybe a warmup speed or something?) then it starts idling fast then slow and so on. i cleaned the mass airflow sensoron the airbox. any ideas could it be just because it has 387000 miles? know thats a lot but it runs like new with any throttle at all? thanks
Senior User
Joined: May 2003
Posts: 161
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From: Spring Hill, KS
94 ranger idle problems
Mine did the same thing...check the Idle Air Control (IAC) and the Throttle Position Sensor (TPS), both located on the throttle body. Autozone will pull the codes for free if the Engine Light comes on...I think the TPS is about $12, and the IAC, there have been threads here saying there from $20-$65 depending on were you go...
If it's just idleing rough, good thing to start with is the IAC, If the RPM's are fluctuating while driving...TPS
Hope this helps!
If it's just idleing rough, good thing to start with is the IAC, If the RPM's are fluctuating while driving...TPS
Hope this helps!
Senior User
Joined: Jun 2003
Posts: 123
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From: Pacheco, CA
94 ranger idle problems
Autozone doesn't check for free anymore...
At least in California
CA was going to fine each store 50,000 if they continued. they stopped about 8 months ago.
I guess in CA we will have to pay a full hours worth for 5 minutes of work. I think its time to invest in a code reader!!!
At least in California
CA was going to fine each store 50,000 if they continued. they stopped about 8 months ago.
I guess in CA we will have to pay a full hours worth for 5 minutes of work. I think its time to invest in a code reader!!!
Thread Starter
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Senior User
Joined: Jul 2003
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From: Virginia
94 ranger idle problems
what do you mean by cleaning it? is their to metal things inside like the maf? my hanes manual says not to use solvent on the IAC solenoid? how should i clean it? do i need to disconnect it from the throttle body? also my relative has a 97 ranger 2wd 2.3. could i try thiers to see if mine is the problem or is it more complicated then that?
Senior User
Joined: May 2003
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From: Spring Hill, KS
94 ranger idle problems
the IAC in my 94 2.3 is from a 94 F150 and I have never had any problems with it...I am not sure if the parts are differant..but they look exactly alike, and mount the same way...wouldn't hurt to try...as long as they are similar
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Senior User
Joined: Jun 2003
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From: Pacheco, CA
94 ranger idle problems
It's not a headache, since you have to take it off anyways to replace it, just clean it first. Cleaned mine and saved me 55 to 100 bucks.
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New User
Joined: Aug 2003
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From: North Highlands
94 ranger idle problems
I have a 94 2.3 5 sp 2wd as well, can someone confirm for me that the IAC on this vehicle is on the back of the throttle body near the firewall. If I remove it to clean it, can I re-use the gasket? Also, I was going to clean the MAF yesterday and discovered those nasty security star screws, where can I find screwdriver bits for them? Thanks much in advance.
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Joined: Oct 2001
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From: Cypress, CA
94 ranger idle problems
Aberfoyle: The security star bits are available at many hardware and/or electronics stores. They are not expensive.
Clean your MAF with throttle-body cleaner not carburetor cleaner because of the coatings. As far as the IAC, also use the throttle body cleaner and clean the passageway inside the throttle body itself. Gasket can be reused if not damaged. Check for leaks around the gasket after reinstallation.
Good Luck
Russ
Clean your MAF with throttle-body cleaner not carburetor cleaner because of the coatings. As far as the IAC, also use the throttle body cleaner and clean the passageway inside the throttle body itself. Gasket can be reused if not damaged. Check for leaks around the gasket after reinstallation.
Good Luck
Russ
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Joined: Apr 2003
Posts: 56
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94 ranger idle problems
I ordered my security torx bit set from MCM Electronics for $6. Item number is 21-3241.
Here's a direct link:
http://mcm.newark.com/NewarkWebComme...jsp?id=21-3241
Here's a direct link:
http://mcm.newark.com/NewarkWebComme...jsp?id=21-3241
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