B0ND Posted July 30, 2009 Report Share Posted July 30, 2009 Hey everyone, first post, I'm hoping you can help me figure out what's wrong with my parent's '99 S70. The short version is that the car has had a considerable loss of power ever since the engine was torn apart to replace con-rod bearings. The car had an issue with oil starvation, which led to the failure of the bearings a few years ago. I haven't been the one driving the car since then so I haven't really been vigilent in trying to solve the problem, but I'd like to get this cleared up for them. The car is now a couple states away from where I live, so it may be hard for me to answer some questions. When my parents complained to the dealer after the service of a lack of power, the dealer basically ignored them saying that it was 'normal' operation. Info about the car: -1999 S70 non-turbo, 5-speed manual Symptoms: -Power loss seemed to be show up as soon as the car was back, i.e. there wasn't a gradual loss of power -Significant loss of power, especially starting from idle - 1500 rpm and above 4k rpm -When accelerating at full throttle at higher rpm and suddenly lifting off the accelerator without shifting can cause the ETS (I think it's ETS...something with the electronic throttle) light to come on and the throttle response then becomes very jerky. Turning the car off and then restarting clears this warning light and the car behaves 'normally' (though still with little power) -Could be my imagination, but there seems to be more intake growl than there was before -At lower rpm and full throttle there seems to be a metallic ticking sound, it doesn't really sound like the lifters though. My theory is that when the engine was being rebuilt, one of the timing cam gears or the crankshaft gear was slightly mis-aligned, leading to valve timing that is just slightly off. Does this sound like a reasonable cause for the symptoms I listed? Any other ideas about what could be causing these problems? While I was home for a summer a few years back I decided to look around in the engine bay to see if I could find anything out of order and I took some pictures of the cam gears and timing belt (I highlighted the timing marks since they were hard to see): Thanks, Eric Link to comment Share on other sites More sharing options...
Chilled man Posted July 30, 2009 Report Share Posted July 30, 2009 gears look inplace but if there timed perfectly is another story would neeed to see the other side and where the marks are at . but to me if your ETS light is comming on you have the standard ETM issue . get your ETM rebuilt and have a great day :D Link to comment Share on other sites More sharing options...
WoodyAWD Posted July 30, 2009 Report Share Posted July 30, 2009 I had to have my ETM replaced - they did it for free. But i wouldn't get any throttle response what so ever. ETM problems come roughly at 90K miles, exactly when my problem happened. That's my knowledge. Good luck. Seth Link to comment Share on other sites More sharing options...
B0ND Posted July 30, 2009 Author Report Share Posted July 30, 2009 gears look inplace but if there timed perfectly is another story would neeed to see the other side and where the marks are at . but to me if your ETS light is comming on you have the standard ETM issue . get your ETM rebuilt and have a great day Doesn't the ETM failure usually accompany erratic acceleration and stalling? Link to comment Share on other sites More sharing options...
B0ND Posted October 7, 2009 Author Report Share Posted October 7, 2009 Just wanted to follow up and let you know that the problem has been fixed! My theory about the timing belt being off a little bit was right, and with a new timing belt attached to properly aligned camshaft and crank gears the engine runs great! Granted the car is still relatively a dog, but its back to running how it used to, and actually willingly will rev to redline. I doubt very many people will come across a situation where this might be their problem, but I wanted to post here anyway. -Eric Link to comment Share on other sites More sharing options...
MrWinkey Posted October 8, 2009 Report Share Posted October 8, 2009 Did they fix the backed out timing cover bolt above the waterpump? How did you get that picture if the car is a couple states away? Glad it's fixed ;) Link to comment Share on other sites More sharing options...
Guest JimLev1 Posted October 9, 2009 Report Share Posted October 9, 2009 Just wanted to follow up and let you know that the problem has been fixed! My theory about the timing belt being off a little bit was right, and with a new timing belt attached to properly aligned camshaft and crank gears the engine runs great! Granted the car is still relatively a dog, but its back to running how it used to, and actually willingly will rev to redline. I doubt very many people will come across a situation where this might be their problem, but I wanted to post here anyway. -Eric Link to comment Share on other sites More sharing options...
JimLev1 Posted October 9, 2009 Report Share Posted October 9, 2009 I'm guess I'm not surprised the dealer blew you off, but the tip off that the cam timimg was off was the louder intake growl. The dealer should have noticed this. You probably get better MPG now. I have a V70 that I'll be replacing the timing belt on in a few months. The wife's S60 has another 15K to go before it's belt time. Link to comment Share on other sites More sharing options...
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