Hi all, my 2002 C70 w/ 2.3L HPT was purchased at 80k and it is now 110k+ miles. I just had the timing belt and water pump replaced at 105k and I get regular oil changes about 3k miles. I've noticed for the past few months that sometimes the car won't start unless I pump the gas a bit and start (rev a bit to about 2k RPM). I also notice now that when at cold start, the RPMs will jump to about 1300 and drop to about 600rpm where normal idle is about 900rpm usually. I am also starting to see that when driving normally (accelerating) the engine is hesitant like it's going to stall (but hasn't ever stall yet).

Do I need to clean or replace fuel injectors? The last similar issue I had like this was on my Audi A4 2.0T and it needed FPR (fuel pressure regulator) replaced. Any help is appreciated.

 

11 views and no input? TECH, are you out there to help plz?

 

Check engine light on?
Throttle body been cleaned lately?

 

Hi Tech, no CEL, but no, haven't cleaned the TB yet. I assume there are instructions on this forum; I've done it before on my 99 1.8T before with the spray and cotton swabs, is that about right to clean the TB sensor filament? TIA

 

Alot of people say to use volvo's cleaner but I have been using carb cleaner for years with no problems. You throttle body is under the intake manifold.

 

HI Tech, I was an idiot. I decided I wanted to enjoy the weekend and give the TB cleaning/adjustment job to a local trusted shop, then I also told them to change the tranny fluid/filter (not sure if I changed it two years ago when I got it).

Well a few hours later, the shop guy tells me that chocolate like thick brown stuff came out as they tried to change the tranny fluid with volvo stuff. But now I have CEL and the atuo tranny wont shift out of first gear. I'm getting a code 1618 which is tranny related. He said he'll get a better scanner on Monday to see what details are in that code. I saw another thread you were helping a guy with S90 with solenoid issue. I'm hoping mine is just the shift control module or something and not an actual tranny problem. I NEVER noticed any issue with the tranny until I was stupid and decided to change it :-( Sighhhh....I guess I'll have to wait til Monday but any advise is appreciated.

The shop was close to my folks place so I limped there in first gear; it drives fine until I give it a little throttle when I hit about 30mph the tech will jump to 3k RPM all of a sudden, then when I let off it will drop back down in RPM.

 

I hope they put the proper fluid back in there.
Hopefully they can get some good codes out of there so we can figure out what is wrong with it.

 

I'm affraid they said they couldn't get a good code, something at TCM 100 and very generic info that my tranny is messed up While I was limping home, I notice that I actually have been staying under 20mph and no more than 2500rpm. While limping back to my folk's place (which is the closest to shop), I finally got into 2nd gear as I managed to get up to 30mph and the RPMs dropped, so I think there's still hope.

Now I'm looking for the tranny dipstick to see if putting some Lucas tranny stuff would help but I can't find it. I googled and read 3 different forums of posts on a 2002 V70 and XC70, supposed to be under the radiator hose and yellow, but no luck. I must be blind or retarded but is there a picture? Is it different in a 2002 C70 2.3L HPT??? Help please. TIA.

 

It is in the same place I do not have a pic. It is in like the middle front of the tranny.

 

Thanks Tech, in addition to the radiator hose, there were two other hose/wire-looms in ribbed casing that were covering it, appreciate your help.

Okay so I waited about an hour to pull out the dipstick, and found two issues:

1) it would spurt out trans fluid about a quart or two; the color is brownish and smells like burnt clutch pack. It's not as thick as I thought.

2) Since the dipstick area is full of trans fluid, I wasn't able to put any of the Lucas stuff. I drove around a bit more in the neighborhood and sometimes it will shift out of 1st to 2nd, but most of the time, it will stay in 1st or sometimes in neutral while moving.

I'm thinking I'll wait until tomorrow when the car is cool to put the Lucas stuff in to see if it'll help. Any idea why the trans fluid would just start pouring out? Is it because I only waited an hour after driving to pull out the dipstick? It's ATM btw. Thanks again TECH.

 

It may be overfull causing the slipping.
For now what I would do is pull the drain plug and drain it out and top it off. It will take about 3 or so quarts to fill it back up again. But remember to leave room for the lucas.

 

TECH, I've read the first 7 pages of the Transmission Fluid sticky thread and I am more confused than ever. I also believe the shop tech MAY have screwed up when I asked for the trans fluid/filter change :-(

I saw a lot of argument about S60s but didn't see any C/V/S 70 series so what type of transmission fluid does my 2002 C70 coupe with 5 spd automatich 2.3L HPT take? Is there any way to "pump" out the current fluid from the dipstick "hole" and put new fluid through that way or do I need to put the car on jack stands, remove some plastic cover, find the transmission drain plug and drain it? I've done some minor car stuff but never really done a trans fluid change. I am considering having the car towed to another shop I trust but further and have them flush and replace trans fluid then maybe even add some Lucas stuff? Any suggestion is appreciated. Thank you as always for your guidance and help.

 

Update,

I spoke to the General Manager of the shop over the phone as I was suspicious of the mechanics' quality of work and here is what he said. Let me know your thoughts on it.

He said they used a brand called Global tranny fluid and it was AW40-52. They drained about 4.5 qts and put in 4.5qts. I told him that I had fluid pouring out twice within a few hours from the dipstick and he said it could be back pressure and that could be the issue with my transmission. This leaves me with about two options:

1) Take it to dealer or a reputable Volvo specialist; have them check to make sure correct fluid was put in and that it's not over-filled, if either is the case to get that statement in writing and go back to the original shop.

2) Take a few hours off work, make the original shop drain and put new fluid in again; although they said they would not put in Lucas stuff which is understandable. I told them I want to watch them do it this time.

Let me know your thoughts and feedback, thank you.

 

Well first I would look and see what tranny you have. There is a plate on the top of the tranny that will tell you which one it is.

If it is the 55/50 then it needs the fluid in the post you read.

According to Vadis you have the 55/50 SN it needs the special fluid you read about.

I would check for sure.

If so take it back to the original shop and make them put the proper fluid in and hopefully they did not screw the tranny up.

 

Tech sorry for the late reply as I have to carpool with my gf these days :-( You were right, my car tranny has a tag stating its a 55/50 SN, so that means I need Mobil 3309 right? So by putting in Global w40-52, they put the wrong fluid? So I'm down to two options:

1) Have the car towed to Volvo dealer about 11 miles away, have them change with correct fluid and have them write me a letter saying there was incorrect fluid in the car and make the original shop refund and pay for the work.

2) Take the car back to original shop, watch them buy Volvo or Mobil 3309 and watch them drain the entire amount out and put new stuff in.

I really appreciate your time and respect your opinion so let me know what you think is the best route and also if I'm right about needing Mobil 3309 or Volvo (is there a name?) tranny fluid for my 55/50 SN. Thanks so much.

 

I would take it back to the original shop and make them swap the fluid and drive it. Then if it is still messed up make them agree to send it to the Dealer and have them look it over at their cost. And if it needs a tranny because they installed the wrong fluid they will have to pay for the cost of it.

 

Tech, you probably won't reply or see this until later today. I talked to the original shop, and they are willing to put in Mobil ATF 3309 and drain it completely. He said the car's capacity is 14 qts but he can only get about 12 qts. He did say there is no concern "mixing" with Mobil ATF 3309, I will try to get it in writing. Let me know your thoughts on it. Thanks.

 

They should not be mixed at all. Make them get all 14 first.

 

Tech, sorry for lack of update as I've been just going back and forth with the shop owner. Long story short, I took the car to dealer, they said they flushed and put in Volvo ATF and it is still slipping. They believe I should replace the tranny at a cost of about $4900. They did say it was overfilled by about 2.5 qts (when I pulled the dipstick, it leaked out about 2.5~3 qts as well), but the color of fluid was same the Volvo stuff so they can't tell if it was wrong fluid or not (but I do have written email from the shop owner that he put in Global AW50-42). I have already tried credit card company w/ no luck on the refund of original service from shop so filed it with BBB.

An ex-mechanic friend of mine say to have the sample of ATF that was in there sent to something like UOA (Universal Oil Analysis) that dealers use to void warranty claims, and also get the dealer to write me that it was overfilled, then maybe I can get a letter from Volvo stating they only support using Volvo OEM or Mobil ATF 3309 in this type of tranny. Then take all those evidence and take the shop owner to small claims court. I work full time and go to school so I really don't want to spend too much time with legal stuff, but I would appreciate your input to see if the above evidence is enough for a case? Thank you.

 

What really sucks is that they don't have enough sense to know if the fluid is wrong (Dealer) the 3309 has a very funny smell to it. The normal ATF does not. You can clearly smell the difference.

I would try to setup a meeting with all the paper work you can get with the original shop and see what they will do then take legal action after that. From what I see they are clearly wrong and should step up to the plate and fix it.