I know i just came to guys for the coolant leak issue, please bear with be because I now have another concern.
So I just gotten my car back form the dealer who sold it to be to have the water pump changed. Ever since I got back it in the car it really didn’t feel right. The car is idling somewhat strangely and the car starts a little rough, the rpm stutter a bit before the steadying out.
Not only that the idle seems to be a little low as well, 600-700rpm at times. The exhaust is doesn’t sound the same either now it’s a deep pulsing note. I can only imagine because of the low idle.
A few times today the car on idle in neutral would sit at low idle and the car with blip on its own to 1200rpm a few times and come back down on it own. The last time it happened all I did was push in the clutch to get into gear. Speaking off the clutch I understand that pressing it down will drop the rpm a bit, but since the rpm is so low it comes down to almost 500rpm, I feel the car about to stall.
Another thing is the synopsper sound like it’s rustling almost on load when I tried the do a pull. Maybe a vacuum leak but would that toss a code. It feels at little sluggish when building boost, but it’s just a feeling. I cant say for sure if Im losing boost. But cruising at the speed limit everything is normal and no overheating issues thus far.
I can’t imagine the car acting like this without my knowledge before I had then water pump changed, I surely going to take it back again and ask why it is acting so odd. But I want to understand the issue at the same time.
I really had two things in mind as to what it might be and like know what you guys think.
1. Even though the water pump job is often routine maintenance and it done often at most shop, I cant say much for the shop the dealership uses. Could they have messed up the timing at all when changing the water pump. I might be stretching but is that possible.
2. Much more likely perhaps the battery was disconnected when doing the water pump, only seem like a natural precaution. And maybe that reset the ecu and the car is relearning the idle like some cars do. This seems more likely, just not sure if a disconnecting the battery could cause the ecu to reset, I figured that usually only happens when the battery is changed.
Not sure what to make you this, I would think the throttle body dirty or something but how could it just get so dirty in a matter of a day.
The car isn’t new, it has 75000km(45000miles); it’s still relatively mint, i can’t imagine it being a lemon. Considering it was form a big GM dealership, I assume they wouldnt be dumb enough to take a lemon car as a trade in, let alone sell it to me. They have already put in roughy $1500 in service cost, which was all free for me. What do you all think, am I worrying to much or is there something significantly wrong.
Rough start...
https://youtu.be/lk1dZz9P3CE
Sent from my iPhone using Tapatalk
So I just gotten my car back form the dealer who sold it to be to have the water pump changed. Ever since I got back it in the car it really didn’t feel right. The car is idling somewhat strangely and the car starts a little rough, the rpm stutter a bit before the steadying out.
Not only that the idle seems to be a little low as well, 600-700rpm at times. The exhaust is doesn’t sound the same either now it’s a deep pulsing note. I can only imagine because of the low idle.
A few times today the car on idle in neutral would sit at low idle and the car with blip on its own to 1200rpm a few times and come back down on it own. The last time it happened all I did was push in the clutch to get into gear. Speaking off the clutch I understand that pressing it down will drop the rpm a bit, but since the rpm is so low it comes down to almost 500rpm, I feel the car about to stall.
Another thing is the synopsper sound like it’s rustling almost on load when I tried the do a pull. Maybe a vacuum leak but would that toss a code. It feels at little sluggish when building boost, but it’s just a feeling. I cant say for sure if Im losing boost. But cruising at the speed limit everything is normal and no overheating issues thus far.
I can’t imagine the car acting like this without my knowledge before I had then water pump changed, I surely going to take it back again and ask why it is acting so odd. But I want to understand the issue at the same time.
I really had two things in mind as to what it might be and like know what you guys think.
1. Even though the water pump job is often routine maintenance and it done often at most shop, I cant say much for the shop the dealership uses. Could they have messed up the timing at all when changing the water pump. I might be stretching but is that possible.
2. Much more likely perhaps the battery was disconnected when doing the water pump, only seem like a natural precaution. And maybe that reset the ecu and the car is relearning the idle like some cars do. This seems more likely, just not sure if a disconnecting the battery could cause the ecu to reset, I figured that usually only happens when the battery is changed.
Not sure what to make you this, I would think the throttle body dirty or something but how could it just get so dirty in a matter of a day.
The car isn’t new, it has 75000km(45000miles); it’s still relatively mint, i can’t imagine it being a lemon. Considering it was form a big GM dealership, I assume they wouldnt be dumb enough to take a lemon car as a trade in, let alone sell it to me. They have already put in roughy $1500 in service cost, which was all free for me. What do you all think, am I worrying to much or is there something significantly wrong.
Rough start...
https://youtu.be/lk1dZz9P3CE
Sent from my iPhone using Tapatalk
