2002 ranger 4.0 idles up and down 119,263 miles
#1
06-04-2017
Thread Starter
|
Member
Joined: Jun 2017
Posts: 4
Likes: 0
From: Poteau. Oklahoma
2002 ranger 4.0 idles up and down 119,263 miles
P1451 p1409 and all three O 2 sencer codes keep returning
Replaced maf ,both egr modules , iac,both evap canisters, all three O2 Sencors and the gas cap
One of the o2 sencor wires were grounded on exhaust?
Codes come back when you start engine?
Any help would be greatly appreciated
Replaced maf ,both egr modules , iac,both evap canisters, all three O2 Sencors and the gas cap
One of the o2 sencor wires were grounded on exhaust?
Codes come back when you start engine?
Any help would be greatly appreciated
#2
06-04-2017
Welcome to the forum
Stop replacing parts you are making it worse
What were the O2 sensor codes?
Ignore EVAP code for now
EGR p1409 code as well
Common issue on the 4.0l SOHC engines(2001-2012 rangers) were the PCV Valve vacuum hoses, especially at the elbows
Have a look here: https://www.ranger-forums.com/4-0l-o...mon-cel-93776/
Sensors rarely fail, 90% of replaced sensors were working just fine.
The fact you get a code usually means the sensor is working or you wouldn't get the code.
If a code says a sensor is reading high or low, then sensor is working, code is to let you know that something is wrong causing the high or low reading, not that the sensor is bad
Most problems are mechanical, i.e. air leaks, wiring issues, not bad sensors
Stop replacing parts you are making it worse
What were the O2 sensor codes?
Ignore EVAP code for now
EGR p1409 code as well
Common issue on the 4.0l SOHC engines(2001-2012 rangers) were the PCV Valve vacuum hoses, especially at the elbows
Have a look here: https://www.ranger-forums.com/4-0l-o...mon-cel-93776/
Sensors rarely fail, 90% of replaced sensors were working just fine.
The fact you get a code usually means the sensor is working or you wouldn't get the code.
If a code says a sensor is reading high or low, then sensor is working, code is to let you know that something is wrong causing the high or low reading, not that the sensor is bad
Most problems are mechanical, i.e. air leaks, wiring issues, not bad sensors
#3
06-05-2017
Thread Starter
|
Member
Joined: Jun 2017
Posts: 4
Likes: 0
From: Poteau. Oklahoma
Thanks
Welcome to the forum
Stop replacing parts you are making it worse
What were the O2 sensor codes?
Ignore EVAP code for now
EGR p1409 code as well
Common issue on the 4.0l SOHC engines(2001-2012 rangers) were the PCV Valve vacuum hoses, especially at the elbows
Have a look here: https://www.ranger-forums.com/4-0l-o...mon-cel-93776/
Sensors rarely fail, 90% of replaced sensors were working just fine.
The fact you get a code usually means the sensor is working or you wouldn't get the code.
If a code says a sensor is reading high or low, then sensor is working, code is to let you know that something is wrong causing the high or low reading, not that the sensor is bad
Most problems are mechanical, i.e. air leaks, wiring issues, not bad sensors
Stop replacing parts you are making it worse
What were the O2 sensor codes?
Ignore EVAP code for now
EGR p1409 code as well
Common issue on the 4.0l SOHC engines(2001-2012 rangers) were the PCV Valve vacuum hoses, especially at the elbows
Have a look here: https://www.ranger-forums.com/4-0l-o...mon-cel-93776/
Sensors rarely fail, 90% of replaced sensors were working just fine.
The fact you get a code usually means the sensor is working or you wouldn't get the code.
If a code says a sensor is reading high or low, then sensor is working, code is to let you know that something is wrong causing the high or low reading, not that the sensor is bad
Most problems are mechanical, i.e. air leaks, wiring issues, not bad sensors
#5
06-09-2017
Thread Starter
|
Member
Joined: Jun 2017
Posts: 4
Likes: 0
From: Poteau. Oklahoma
Still idlin
[QUOTE=Jr fx4 level ll;2121053][QUOTE=Jr fx4 level ll
checked the two pcv elbows they looked fine
i don't have the other three codes but I will let you know[/QUOTE]
five codes
1451
0135
0141
0155
1409
it runs fine down the road and doesn't consistently idle up and down kinda sporadic any help would be appreciated
checked the two pcv elbows they looked fine
i don't have the other three codes but I will let you know[/QUOTE]
five codes
1451
0135
0141
0155
1409
it runs fine down the road and doesn't consistently idle up and down kinda sporadic any help would be appreciated
Thread
Thread Starter
Forum
Replies
Last Post
TommyC
General Ford Ranger Discussion
7
07-27-2006 05:12 PM
