SwedeSpeed - Volvo Performance Forum banner

1 - 9 of 9 Posts

·
Registered
Joined
·
717 Posts
Discussion Starter · #1 ·
Hey Guys,<p>I have a weird issue with my wife's 2004 V70R (GT), under light throttle the car will shift gears in jerky /rough manner. It was almost like the tranny didn't know which gear it should be in...I couldn't find any info on this issue. <p>Has any one else experienced (or heard) of this issue? <p>Our check engine light is on which could co inside with the "time for regular maintenance" message is also just came on.<p>Does anyone have any ideas?<p>TIA,<p>John<p><br>
 

·
Registered
Joined
·
21,340 Posts
Re: Rough shifting Automatic (Jpandes)

1) The CEL has nothing to do with time for regular service. <br>2) Has the transmission had all it's requisite software upgrades (there are a couple out there for various drivability issues). <br>3) Mileage / fluid? Have you flushed / changed the fluid? <br>4) Fluid / type - only use fluid that meets -3309 specs. It's expensive, but you need it.
 

·
Registered
Joined
·
8,737 Posts
Re: Rough shifting Automatic (Jpandes)

just curious, is this when in sport mode or out? Mine is really rough at shifting when in sport mode, it is fine when not.<p>My EX35 drive sport mode shifts buttery smooth which is why I am noticing it.<p>are there software upgrades for an 06?
 

·
Registered
Joined
·
2,964 Posts
Re: Rough shifting Automatic (inteller)

Retailer Technical Journal 16724<p>Coolant contamination in automatic transmissions<p>Date: 10-8-2008<p>Reference: VIDA<p>Note! If using a printed copy of this Retailer Technical Journal, first check for the latest online version.<p>NOTE! THIS DOCUMENT SUPERSEDES THE PREVIOUS VERSION OF RTJ 16724 (TNN 43-48) DATED 4-18-2007. Changes have been made to the cooler and hose replacement guidelines. PLEASE UPDATE YOUR FILES.<p><br> <p>AFFECTED VEHICLES:<p>BACKGROUND: <p>The root cause for some automatic transmission failures is glycol contamination from the engine/transmission cooling system. Severe cases of contamination are easy to detect by a visual inspection. The transmission fluid will have a milky appearance and there may be signs of transmission fluid in the coolant reservoir. Less severe cases are impossible to detect without doing a chemical analysis of the transmission fluid. This slight contamination is easy to overlook and will result in a repeat transmission failure.<p>A small leak from the cooling system into the transmission can cause driveability problems long before there are any visual signs of contamination.<p>SYMPTOMS OF COOLANT CONTAMINATION:<p>The most common symptom of coolant contamination is shudder; a high frequency vibration.<p>^ On AW55 transmissions, the shudder normally occurs while in torque converter slipping lock-up mode. It is most easily reproduced by driving slightly uphill at about 40 MPH (65KPH) in 4th or 5th gear with light pedal at 122°-158°F (50-70°C) transmission oil temperature.<br> <br>^ On the GM4T65 transmission, the shudder normally occurs during upshifts.<br> <br>^ On all transmissions, other symptoms such as harsh shifts, slipping, flare, loss of drive, other DTCs, etc... are possible but not likely. <br>
 

·
Registered
Joined
·
1,020 Posts
Re: Rough shifting Automatic (Short Circuit)

Just curious, on the AW55 if there's a contamination, where does the ATF mixes with the coolant? <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/confused.gif" BORDER="0">
 

·
Registered
Joined
·
717 Posts
Discussion Starter · #6 ·
Thanks for the replies guys. I must have my email notifications turned off. <p><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>shortcircut</b> »</i></TD></TR><TR><TD CLASS="quote">On AW55 transmissions, the shudder normally occurs while in torque converter slipping lock-up mode. It is most easily reproduced by driving slightly uphill at about 40 MPH (65KPH) in 4th or 5th gear with light pedal at 122°-158°F (50-70°C) transmission oil temperature.</TD></TR></TABLE><p>It hasn't happened in a while according to my wife. When I experienced, on the freeway, up a slight grade, under light throttle, in Sport mode. Just like the situation that Shortcircut posted! I guess I need to figure out how to inspect the tranny fluid.<p>We have only owned the car for 5-7k miles. The car was also inspected by the dealership in order to purchase an aftermarket warranty. The only thing that they caught was that the angle gear housing had to be resealed for $900. <p>* I bought a code key reader from Costco for $35. The CEL is being caused by the P0193 code (Fuel rail pressure sensor circuit high input) I cleared the code and it returned. I<BR><BR>
<i>Modified by Jpandes at 10:40 PM 8-13-2009</i>
 

·
Registered
Joined
·
11,628 Posts
Re: (Jpandes)

Check this thread regarding your code:<p> <A HREF="http://forums.swedespeed.com/zerothread?id=52306" TARGET="_blank">http://forums.swedespeed.com/zerothread?id=52306</A>
 

·
Registered
Joined
·
1,102 Posts
Good luck with your harsh shifting problem. I've had my codes updated for this and all mount gone over with a fine tooth comb. Apparently everything is fine yet still shifts hard. Blah blah blah blah. I'm tired if hearing this. It's flat out garbage.
 
1 - 9 of 9 Posts
Top