terrance21!

When I step on the accelerator the engine flutters violently. This only happens when I really "step on it". Just recently replaced the spark plugs because of this issue. If anyone else has experience this please share. Thanks

haoz129

Don't guess, check codes.

marktan

Codes would be needed...but I'm putting money on a damaged coil pack (join the club!!).

haoz129

, V12PackClub.

terrance21!

I don't have a check engine light.... Would I still have codes?

haoz129

Yes, this car is complex. There is too much room for people to guess. You may spent a fortune replacing but without getting to the point.
Error code will direct you very close to the issue. Then members here could suggest you how to fix it, or is your repair proposal right.

Unfortunately regular OBDII reader won't help much, if it's free, better than nothing. You'd better have it hooked to MB STAR and get a code list or report.
Such a report will help you to address this issue and also as a health check. If you haven't hooked it up for a long time, better do it. Don't neglect an elegant car.

Thanks.

Howard

marktan

If its as bad a flutter/shake as it sounds, I'm surprised it didn't throw the CEL light on...maybe the light is burnt out? take it to an autozone or place than plug an obdii reader in. Perhaps there is something "pending".

kraut56

When you turn the key on without starting the car the CEL should come on; in Canada it's an engine symbol.

terrance21!

I did it no CEL, No check engine... I will be taking her in Monday for a check up. Prepared for the worst but hoping for the best.

terrance21!

Ok Gents,

I posted this weekend that I was having acceleration issues... well after taking my beast to the shop I was told that it was the drum assembly in the transmission that was falling apart. My car has 108,000 miles is this normal wear? Also, I was quoted 6g's for repair can anyone give me advice on a cheaper option? Any help would be appreciated.

haoz129

It is not normal for 722.6, if as your shop said. This trany is pretty bullet proof if maintained. Never heard transmssion itself has issue in S600 other than the electric parts.

I don't know there is a drum in this trany. Is it the torque converter ? I'd suggest:
- Still insist, for this case, go to dealer, read codes, seek for 2nd opinion;
- If the trany was done, try to find a used one, that will be much cheaper; George, one of the forum member, managed to get a used 722.6 for few hunderd bucks. S600 trany is a bit different though;
- Or, talk to a good trany shop for their idea.

Good luck.

Howard

marktan

I've never heard of a transmission drum either. My indy mechanic quoted ~$3-4k (US$) for a complete rebuild if I ever needed one, so maybe shop around and get a second opinion?

terrance21!

Thanks for the insight Mark & Howard, I live in a small town outside of Tucson AZ. (hence the ridiculous pricing) I will be taking her in for a second opinion this weekend so I will keep you guys posted.

S600Keith

IDK. My tranny for my GMC pickup was $3500 to rebuild. $6k does not SOUND that far out of line. If you can find it cheaper then go for it. I think Howard's idea of a used one has some merit. Like has already been said, the tranny is pretty beefy. Hard to damage it unless it was not maintained well. You either got one that was not up to snuff off of the assembly line or was not kept up. You should be GTG with a used one. I would go for it.

Keith

terrance21!

Howard, did George do a write up for his tranny work? If not can you get me in touch with him? Trying to collect as much info as I can before I make any moves. Thanks

haoz129

I don't see his post about the trany replace. His screen name is: Tusabes, and he must be around now.
So wait for him to chime in or pm him.

Howard

terrance21!

Thanks Howard.... I will try to track him down.

terrance21!

Ok Gentlemen it looks like I am officially part of the"V12PACKCLUB" (not by choice) Well it seems that the "European Auto Specialist" that I took my girl to... wasn't much of a specialist. After a second and third opinion my acceleration issue has turned out to be a coilpack not the tranny as previously diagnosed. Now I am on the hunt for the best bang for the buck on a set of coil packs. I'm trying to find out who got the best deal when they replaced their coils..... (and not you Howard, I hear that you made your own in your garage with a paper clip and some twine, lol) So please chime in with your best prices on these puppies.

marktan

Welcome to the club!! I got both mine from amazon.com. Standard motor products uf578 and UF-579 right and left respectively. $981 as of today. Do it right and replace all the sparkplugs while you have them off too (all 24 of them). You risk damaging the coil pack each time you remove and reinstall it, so you may as well replace them while you have access to them. I've gotten to the point I can remove both packs and replace all plugs myself in about 2-3 hours depending on how many times I drop parts into the engine bay. Also put tape over the turbo inlet so nothing drops down there by accident...and watch out that you don't break the nipple off the air pressure sensor that is attached in front of the intercooler. (Ask me how I know all this...). Good luck!!

terrance21!

Thanks for your input Mark, just one question... does anyone know anything about AIRTEX coil packs? I seen them on eBay for $764.13.

marktan

Not sure about AIRTEX. Standard Motors, I think, is the OE supplier. Not to say they don't have a number of them. There was one palce down in Florida that claimed to rebuild and distribute them that I have heard to avoid at all costs. I don't recall the name though, nor do I have any direct experience with them. I think as long as you have a good warranty/return policy on it, you should be good. If you do a search, I believe there is a thread with photos that details the coilpack replacement step-by-step.

haoz129

Try to stick with OE/OEM. If you don't know the supplier, don't risk.
This part need lots of efforts to put in, you really don't want to do it twice.