Question about 1998 Acura CL

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Tranny slips & wont shift past 2nd gear

My tranny slips bad at first once its warmed up it wont shift passed 2nd gear. and if you put it in drive 4 it down shifts hard lick its trying to go in to first.

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  • Anonymous Mar 26, 2014

    will not shift past 2nd gear

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Tranny slips can also mean that you may need to change the tranny filter. But just like cooking oil at first it is thick then you add heat and it gets thinner, same for tranny oil which could also mean that your tranny needs gear and plate work. The easiest way to find out is to insert the oil dip stick, clean it with a paper towel and check to see if you can see metal shivers or if the color of the tranny oil is not red but silverish, these are usually indictative of a tranny that needs an overhaul. hope this helps.

Good Luck =)

Posted on May 21, 2009

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Ok, you will need to first check the fluid level in this transmission. if the trans is sealed, you will need to take to the dealer for a fluid check. assuming that the fluid level is proper, this will usually be caused by a faulty transmission control module and faulty shift solenoids as well. these devices are located on and inside the trans and i recommend testing each device for flaws.


Most slips are the result of gear ware but, the solenoids and TCM will cuse this issue as well.

Posted on May 21, 2009

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1 Answer

Saturn sc2 problem


DTC P0732 sets when 2nd clutch still slips after the PCM has commanded high main line pressure
DTC P0734 sets when 4th clutch still slips after the PCM has commanded high main line pressure.
DTC P0733 sets when 3rd clutch still slips after the PCM has commanded high main line pressure.
The powertrain control module (PCM) uses the crankshaft position (CKP) sensor, input speed sensor (ISS) and output speed sensor (OSS) to determine engine speed, input shaft speed and output shaft speed. These sensor readings are used to determine the current gear ratio and RPM slip across the torque converter. The PCM uses this information from the sensors to determine if the commanded gear matches the actual gear. During normal driving conditions, the PCM will adapt main line pressure via the pressure control (PC) solenoid to prevent slipping and harsh shifts. Shift solenoid 2 is used to apply or release second gear clutch. The PCM controls 2nd gear by controlling the ground for shift solenoid 2. The PCM will turn the solenoid Off (open the driver circuit) when second gear is commanded On to apply 2nd clutch. Shift solenoid 2 is supplied ignition voltage from the fuel pump relay whenever the PCM commands the fuel pump relay On.
Do you know how to test main line pressure ? Also , with the valve body off air check clutch packs . Do you know how to do that ? How many miles on the trany ?

Auto Trans Rebuild Chapter 8 Air Check
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Jun 08, 2017 | 2005 Saturn SC2

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Transmission


A/T tranny issues. (solenoid )
my auto tranny is slipping in call gears. forward and reverse?
there are no guessing, just tests.
check all fuses.
check AFT levels using the operators guide, (dont guess at ways, do it right way, as 99% dont)
so DRIVE is stuck in 1st gear, or 2nd?
the connect the jumper for the TCM, and get the flash codes.
if it says VSS is dead, then it is.
why wonder this. the TCm will not lie, it will see any bad VSS signals and report them on all cars made. but has flash codes this year.
there are 3 or 4 paths here

1; inputs to TCM wrong, sure it will shift wrong. how could it not.
2: TCM bad , it has good inputs and its outputs are wrong.
3: the TCM to tranny connections are bad, (corrosion)
4: the Solenoids have the correct inputs but fail to work.
bad solenoids or far far worse.
note the order here.. only this works unless guessing with $1500 fist of dollars is ok.

the FSM covers each tests. from 1 to 4.
for on car tests. if the solenoid tests pass its a bad tranny.






Feb 12, 2014 | 1993 Toyota Camry

1 Answer

95 accord v-tec was slipping when warmed up put a used tranny in and did the same thing then the next day it wont even go anywhere in drive revs like it is in neutral surely it not two trannys with the...


is this a transmission question
the A/T will not do what.
there are like 100 faults symptoms on any A/T
tell what it does right and wrong?

my guess is all forward gears and reverse are dead
and sure it slips, if in 1st gear or REV.and ar dont move
and engine is at 3000 rpm ,its slip city
this transmissing is shifted electronically
the Model of the tranny ends in E, means that.
so the first test (all this ever word is in the FSM under slips)
you see if the TCM (tranny brain) has errors stored.
that is in the FSM. (factory service manual)
most old cars with TCM have flash codes for engine and tranny separate. so do that.
you do know the transmission must be perfectly grounded
or the TCM will not be able to send commands to the trans , right?
seen many cars with the Factory trans ground strap missing. too many.
if the TCM is happy, we then make sure that
the shift solenioid lines have the correct logic, to get in to say
drive or Reverse (you pickone,)
then measure it with a voltmeter, (all this is in the FSM)
make 100% sure the voltmeter neg. lead id ground to the transmission casing (so i can see the ground fail)
i take my 3 or 4 readings, for each sol. line.
and say they all pass. 0v,. 0v , 12v test. that means
the TCM has told the Trans what to do,
if it trans slips the trans is bad or the clutch is dry or bad.

in fact, ive made up a switch box with toggle switches,
that plugs in to the tranny and and shift it like a manual trans, all day long. 1 switch for each sol. line
100% sure way to prove what end is bad. TCM or gear box.

ask questions.


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94 chevy k1500 wont shift past 2nd gear.


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I have a 2000 GMC sierra 2500 truck. The guy I bought it from had a new transmition put in it. After driving a while I noticed that the tranny wouldn't shift into low gears 1st & 2nd on comand. and...


-----check possible tps [throttle position sensor ]circuit for damage or faulty sensor----if good check the fuses and trans harness for shorts damage or disconnection,check o2 sensors wiring possible ground to exhaust ,or internal leak 2nd gear apply circuit[servo assembly or 1-2 accumulator] or poor pump pressure

Feb 13, 2010 | 2000 GMC Sierra

2 Answers

1996 Jimmy won't shift out of 2nd


Had the same problem with it not shifting passed second and slipping in and out. one of the PCM modules (there are 2) isn't grounding properly. gmc dealer jumped a wire from the properly grounded PCM module to the un-grounded one. problem solved. this after i spent money on a re-manufactured tranny at there suggestion. But i got my money back because there exists a technical service bulletin on this issue and i complained to them that they should have known about it beforehand, so i got a re-manned tranny with warranty for free, not bad, thanks GM. Jimmy's still running....

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1 Answer

Transmission on 1995 Buick Century, slipping badly


Sir I would first change my filter. When you do you should be able to acertain if anything is wrong by what yuo find in your pan. I think your clutchs are probably bad, but with out being able to scan it I don't have any other ideas. I have been lucky a couple of time before and changing the filter solved my problem. Your car is in limp mode generally you have reverse and second gear. 1st gear and reverse use the same clutches, so I am wondering if maybe you have second gear only!

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