Head Gasket replacement
Junior User
Joined: Nov 2003
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"quirky" Ranger
hey Matt11...responding to one of your earlier messages, about your idle problem when cold. I too have the same problem with my Ranger, but mine is on a 1992, 3.0 liter engine. It has done this since new and when I would take it in for warranty work, they could never duplicate the problem (so they said), but it does exactly what you say yours does. That is if I take off too soon before it warms up (worse in summer than winter) then it will idle very high at stops and won't come down until I turn off the ignition and restart the engine. I recently spoke to a reputable mechanic about the problem and he said there may be a problem with the seal between the intake plenum and manifold and wanted to charge me an arm and leg to look into it.
I recently replaced both O2 sensors on my truck and that seemed to solve the problem since it did not do it for many weeks after, but just recently I took off in a hurry after starting the engine and it did it again for the 1st time since changing the sensors.
This information may not be of any help to you, but wanted to relate it to you anyway for 2 reasons.... 1) so you will know it's not a "quirk" and that it's a flaw in the electronic feedback system of the engine, and 2) maybe someone out there may know what the real cause of this phoenomenon is.
good luck with your gasket replacement.
xltdawg
I recently replaced both O2 sensors on my truck and that seemed to solve the problem since it did not do it for many weeks after, but just recently I took off in a hurry after starting the engine and it did it again for the 1st time since changing the sensors.
This information may not be of any help to you, but wanted to relate it to you anyway for 2 reasons.... 1) so you will know it's not a "quirk" and that it's a flaw in the electronic feedback system of the engine, and 2) maybe someone out there may know what the real cause of this phoenomenon is.
good luck with your gasket replacement.
xltdawg
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Joined: Mar 2004
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Thanks for relaying this message XLTDAWG! Maybe there is a solution to my problem!
I was looking at some of the previous postings on idling issues. In those postings it seemed that the 02 sensor and EGR valve was mentioned as possible causes of idling problems. I was thinking about replacing them to see if they would take care of it but it looks like that probably isn't the problem. I bought my ranger 2 years old with 20K on it and your ranger was brand new so it probably isn't the sensor or valve. Maybe your mechanic is right and it is a seal problem.
I replaced all my gaskets so, assuming I did everything correctly, if that is the problem my problem should dissappear. I'll keep an eye on it and give you a report in a couple of weeks. Thanks again for passing this on!
I was looking at some of the previous postings on idling issues. In those postings it seemed that the 02 sensor and EGR valve was mentioned as possible causes of idling problems. I was thinking about replacing them to see if they would take care of it but it looks like that probably isn't the problem. I bought my ranger 2 years old with 20K on it and your ranger was brand new so it probably isn't the sensor or valve. Maybe your mechanic is right and it is a seal problem.
I replaced all my gaskets so, assuming I did everything correctly, if that is the problem my problem should dissappear. I'll keep an eye on it and give you a report in a couple of weeks. Thanks again for passing this on!
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Joined: May 2004
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HAY MAT how is going ? i too have been haveing problems with my ranger starting and stay runing, it starts fine but within 5 min it seems to b starving for gas.Ibought a code checker and am geting code 122 witch it a thottle body high amp ?? if any body got any replies , thanks marvoles
Posting Guru
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marvoles, 122 is throttle position sensor below minimum voltage. if you got it while running the KOER test did you wrap the engine wide open when you were suppose to? if not then that is why you got the code. nothing to worry about.
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Hello marvoles, everything seems to be running fine for me. Seems like I have more acceleration (probably from the new plugs) and my cold idle problem has dissappeared. (If the problem reappears I'll send a new message XLTDAWG but looks like your reputable mechanic has maintained his reputation. If it is just new gaskets on the intake side it is a cheap fix but would probably take all day to do.)
I looked at my haynes and it says 122 is "Throttle position sensor circuit below min. voltage". You mentioned earlier that you used carb cleaner to clean the throttle body. Rockledge and el conquistador said that it should be throttle body cleaner. Do you think that may have affected the sensor?
I looked at my haynes and it says 122 is "Throttle position sensor circuit below min. voltage". You mentioned earlier that you used carb cleaner to clean the throttle body. Rockledge and el conquistador said that it should be throttle body cleaner. Do you think that may have affected the sensor?
Post Fiend
Joined: Jan 2003
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From: Connecticut
Originally Posted by mat11
Hello marvoles, everything seems to be running fine for me. Seems like I have more acceleration (probably from the new plugs) and my cold idle problem has dissappeared. (If the problem reappears I'll send a new message XLTDAWG but looks like your reputable mechanic has maintained his reputation. If it is just new gaskets on the intake side it is a cheap fix but would probably take all day to do.)
I looked at my haynes and it says 122 is "Throttle position sensor circuit below min. voltage". You mentioned earlier that you used carb cleaner to clean the throttle body. Rockledge and el conquistador said that it should be throttle body cleaner. Do you think that may have affected the sensor?
I looked at my haynes and it says 122 is "Throttle position sensor circuit below min. voltage". You mentioned earlier that you used carb cleaner to clean the throttle body. Rockledge and el conquistador said that it should be throttle body cleaner. Do you think that may have affected the sensor?
DTC 122 indicates that the Throttle Position (TP) sensor signal is less than the Self-Test minimum value.
Possible causes:
-- TP sensor may not be seated properly (tightened down).
-- Damaged TP sensor.
-- Open harness.
-- Grounded harness.
-- Damaged Powertrain Control Module (PCM).
Here is how to "quick test" the TPS: Throttle Position Sensor (TPS) Test
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HAY guys,thanks for the input,i went and got a new tb sensor was going to put it in ,when i went to take off the intake i saw i missed a vacume line,DUMMY ME,
put it all back on it runs like a TOP, thanks again marvoles
put it all back on it runs like a TOP, thanks again marvoles
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