Apr 26, 2016, 01:23 PM
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The common p1870 code?? Need help noob with transmissions
The common p1870 code?? Need help noob with transmissions Ok, was driving on the freeway and suddenly my SES light came up so I immediately went to the nearest autozone and got it checked.
Told me it was throwing this code p1870 and that meant the transmission was slipping, he said to check the oil and it seemed fine
As far as I know, the car came with a tranny cooler, since its on top of the radiator, and transmission fluid seems fine, any advice??
Told me it was throwing this code p1870 and that meant the transmission was slipping, he said to check the oil and it seemed fine
As far as I know, the car came with a tranny cooler, since its on top of the radiator, and transmission fluid seems fine, any advice??
Staging Lane
Joined: Sep 2010
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kit they sell a kit to fix that
http://www.transmissionpartsusa.com/...-07775404k.htm
they sell a kit to fix that and you need the reamer
there is only 2 types of 4l60e's ones that need a rebuild now and ones that are going to need to be rebuilt lol
http://www.transmissionpartsusa.com/...-07775404k.htm
they sell a kit to fix that and you need the reamer
there is only 2 types of 4l60e's ones that need a rebuild now and ones that are going to need to be rebuilt lol
I had similar, though caught it before it was throwing the SES light.
It isn't too hard... I did have a friend who was familiar with the transmission guts help me (plus his work has a lift which made it 10x easier). I didn't use that Sonnax kit though, I used the transgo SK-4L60E. Costs just slightly more, but also upgrades springs and stuff, making shifts a little firmer and quicker. That trans has 161k on it right now and works great.
Transgo also makes higher performance kits like the HD-2 but that is more involved to do.
Just a note - there are some replacement springs in the Transgo SK-4L60E for the 2-4 servo, but that servo can be a bear to get out due to its location on the trans in relation to the trans tunnel. Had to drop the trans a few inches to get enough clearance to get the cover out.
If you don't want to tackle the install yourself, a trans shop should have no problem installing it for you.
It isn't too hard... I did have a friend who was familiar with the transmission guts help me (plus his work has a lift which made it 10x easier). I didn't use that Sonnax kit though, I used the transgo SK-4L60E. Costs just slightly more, but also upgrades springs and stuff, making shifts a little firmer and quicker. That trans has 161k on it right now and works great.
Transgo also makes higher performance kits like the HD-2 but that is more involved to do.
Just a note - there are some replacement springs in the Transgo SK-4L60E for the 2-4 servo, but that servo can be a bear to get out due to its location on the trans in relation to the trans tunnel. Had to drop the trans a few inches to get enough clearance to get the cover out.
If you don't want to tackle the install yourself, a trans shop should have no problem installing it for you.
What do you know about the torque converter? Often the
tranny cooler isn't thought of, until that mod. Aftermarket
converters are usually weaker int he clutch and can need
more holding TCC pressure, while the stock tune runs at the
minimum line at cruise and "slip learning" gives the TCC the
bare minimum to hold on.
You would really like to know whether it's TCC slip or friction
slip, before you go tearing into things. There's a lot that can
be done from the keyboard, if it's really just a pressure
problem against an unrepresented aftermarket part.
tranny cooler isn't thought of, until that mod. Aftermarket
converters are usually weaker int he clutch and can need
more holding TCC pressure, while the stock tune runs at the
minimum line at cruise and "slip learning" gives the TCC the
bare minimum to hold on.
You would really like to know whether it's TCC slip or friction
slip, before you go tearing into things. There's a lot that can
be done from the keyboard, if it's really just a pressure
problem against an unrepresented aftermarket part.
ill i know about the car is that the previous owner said he put oem dealership parts, so not sure what has been done or why he installed the tranny cooler, but transmission doesnt really seem to be having hard shifts??
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Any sign of clownage, like K&N or ported MAF? Those
can give you a low "load" (airflow) reading and pull back
line pressure too.
You might pull the inspection cover and look at the
converter. If it's painted, it's aftermarket.
can give you a low "load" (airflow) reading and pull back
line pressure too.
You might pull the inspection cover and look at the
converter. If it's painted, it's aftermarket.
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Verdad Gallardo oh i self ported the maf like the one in this link
http://www.installuniversity.com/ins...afapalooza.htm
could this affect it?? how i find it kind of odd??, also wet sand some of the throttle body not a lot though
http://www.installuniversity.com/ins...afapalooza.htm
could this affect it?? how i find it kind of odd??, also wet sand some of the throttle body not a lot though
I would go find a stock MAF, swap it on, disconnect the
battery to reset everything, and see if the trans gets
back to working like stock.
That much hogging will definitely bend your airflow
readings, which the PCM uses to figure load and set
line pressure.
battery to reset everything, and see if the trans gets
back to working like stock.
That much hogging will definitely bend your airflow
readings, which the PCM uses to figure load and set
line pressure.
It will wait for the next time that something slips for
more than (if I recall) 10 seconds. If you lose lockup
again on the next long Interstate grade or on-ramp,
don't be too surprised. A starved converter will act like
that.
You might take this "quiet time" to put some things
closer to right.
more than (if I recall) 10 seconds. If you lose lockup
again on the next long Interstate grade or on-ramp,
don't be too surprised. A starved converter will act like
that.
You might take this "quiet time" to put some things
closer to right.
