Torque Converter rarely locking
#1
Torque Converter rarely locking
Hello, I have had an issue with what seems like my torque converter unlocking more than it should. When I am at between 45-55 my tach will bounce 100-200 rpm or so. I wont be able to feel a difference but I can hear the motor rev like the TC is unlocking. It also seems to me like the TC will unlock much earlier than it should. My pickup cruises around at 1800-1900 rpm going 60mph much more than the 1600 when the TC is locked in. I drive mostly flat roads as I live in Iowa. Does anyone know what might be causing this?? I have already replaced the TPS , spark plugs, and changed the tranny fluid/filter. I also seem to have a vacuum leak as my vents will switch to defrost while under a load from time to time. I have checked all the lines I can see and replaced any with cracks and still no help. Can these problems be related? Does anyone have any tips on tracking down a vacuum leak? Thanks for any help anyone can provide!!
Oh and this is on my 2001 Ram 1500 360 4x4, it has around 85,000 miles on it, everything is stock.
Oh and this is on my 2001 Ram 1500 360 4x4, it has around 85,000 miles on it, everything is stock.
#3
#4
#5
What brand did you buy and did you disconnect the negative battery cable "before" replacing it? And to test, get a Haynes manual and a cheap analog multimeter(for the TPS) . You can test all the other sensors also with the info in a Haynes and a cheap digital volt meter .
Not too mention the free downloadable Factory Service Manual available on the first page in the FAQ/DIY section.
Not too mention the free downloadable Factory Service Manual available on the first page in the FAQ/DIY section.
Last edited by zman17; 08-15-2012 at 01:00 PM.
#6
#7
Trending Topics
#8
So, I read through the vent post and this led me to replace my pcv valve this morning. After doing that it seemed that my TC was working as it should. I only drove it a short 10 mile trip but it went up a hill and the TC stayed locked, something that it hasn't done before. I will take it on a longer trip this weekend and that should tell me more. Maybe this could help my MPG too!!
It didnt help my vent problem though. I have attached a pic of a vac line I found while searching around my engine bay last night. It appears to be coming from a plug on the Transfer Case and comes out on the driver's side of the Distributor. I cannot find where it goes. Does it plug into anything? It is the green line in the pic.
It didnt help my vent problem though. I have attached a pic of a vac line I found while searching around my engine bay last night. It appears to be coming from a plug on the Transfer Case and comes out on the driver's side of the Distributor. I cannot find where it goes. Does it plug into anything? It is the green line in the pic.
#9