Hi All
Dear Pathfinder has had it's first breakdown!
It happened this afternoon without warning after I pressured cleaned the engine bay like I do every 10,000km oil change.
Symptoms are that it holds on to each gear for to long/high speed before changing up to the next gear.
To get it to change gears you need to drive it like it's stolen.
Also no matter what you do it won't go into 4th gear but the torque converter will lock.
I don't think it's mechanical as I get the transmission serviced once a year, fluid level is fine and is not burnt or discolored. Has only done 150,000km.
My suspicion is that it's the throttle position sensor (TPS) the work shop manual indicates that as well but the manual shows a sensor in the foot well so i suspect that is the American 3.5 engine. I'll have another look in the manual tomorrow.
Also after connecting and reconnecting the TPS with engine off it all came good until just this evening and it went back to playing up so again I turned off the engine and disconnected and reconnected the TPS but still no good.
On the way home for no apparent reason it came good back to perfectly normal then it went bad and finally came good.
Unfortunately is now an intermittent problem :x but I still suspect it's the TPS but I need to figure out what voltage to test for.
Any help or advice greatly appreciated.
Cheers
Justin
Dear Pathfinder has had it's first breakdown!
It happened this afternoon without warning after I pressured cleaned the engine bay like I do every 10,000km oil change.
Symptoms are that it holds on to each gear for to long/high speed before changing up to the next gear.
To get it to change gears you need to drive it like it's stolen.
Also no matter what you do it won't go into 4th gear but the torque converter will lock.
I don't think it's mechanical as I get the transmission serviced once a year, fluid level is fine and is not burnt or discolored. Has only done 150,000km.
My suspicion is that it's the throttle position sensor (TPS) the work shop manual indicates that as well but the manual shows a sensor in the foot well so i suspect that is the American 3.5 engine. I'll have another look in the manual tomorrow.
Also after connecting and reconnecting the TPS with engine off it all came good until just this evening and it went back to playing up so again I turned off the engine and disconnected and reconnected the TPS but still no good.
On the way home for no apparent reason it came good back to perfectly normal then it went bad and finally came good.
Unfortunately is now an intermittent problem :x but I still suspect it's the TPS but I need to figure out what voltage to test for.
Any help or advice greatly appreciated.
Cheers
Justin