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Cruze Delay in Acceleration

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John02

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Discussion starter · #1 ·
I've been thinking of buying a Cruze, so I took one for a test drive the other day. I loved everything about it except, it had a terrible delay between the time you press the gas pedal and the time it actually responds. For example, I cruised along at 25-30 mph, then pressed the gas and it literally took about 2 seconds before it even started accelerating.

So, is this just a short term thing as the computer "learns" driving habits, etc? And if it is..how does it behave after it learns the new habits, is there still a noticeable lag? or is it gone? Also, how does it behave at higher speeds? Is there anything else about this issue I should know?

Thanks in advance. I'm planning on going back to the dealership today, but was wondering if I could get some knowledge before heading back. Thanks in advance.
 
#2 ·
what engine and what transmission did you test drive, or do you want to buy?

It is an drive by wire, so its electronically controlled throttle body. There is a tad of lag for the ecu to register what you did, process and do it, but 2 seconds? The car is very quiet, and the engines arent fast, are you sure it was just slow to show large amount of acceleration? Also if it is an automatic and you floor it, it will need to process then down shift the auto trans.

I just drove a 1.4L 6spd manual the other day and if I floored it, it was just slow to get going as the engine is tiny. I down shifted and off it would go, no issue.
 
Discussion starter · #3 ·
northvibe said:
what engine and what transmission did you test drive, or do you want to buy?

It is an drive by wire, so its electronically controlled throttle body. There is a tad of lag for the ecu to register what you did, process and do it, but 2 seconds? The car is very quiet, and the engines arent fast, are you sure it was just slow to show large amount of acceleration? Also if it is an automatic and you floor it, it will need to process then down shift the auto trans.

I just drove a 1.4L 6spd manual the other day and if I floored it, it was just slow to get going as the engine is tiny. I down shifted and off it would go, no issue.
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It was a 1.4L turbo. It was a very noticable lag, not just in how long it took to move, but how long it took for the rpm's to change any as well. I realize there could be some processing time, but it should be very minimal as cars have had computers that do instant processing for years. I've used HP Tuners on a different car before and could see some of the processing that goes on so I wouldn't expect a noticeable lag from this. I guess if it stays bad enough I could tweak some things with HP Tuners.

I've seen a couple other posts about this, but the only answer I've seen is about the computer learning your driving habits. But will that fix it? or will there still be this long delay?
 
#5 ·
1.4L turbo automatic or manual?

I assume auto, and thats what my roommates said as well, that it was slow. That is actually fairly common in drive by wire cars these days, probably in there for the eco part, so you get a slow and gradual acceleration.
 
Discussion starter · #6 ·
Hmm, are all drive by wire cars that unresponsive? It was terrible how long I had to wait for any response. Does it get better over time as the computer learns?

Also does anyone know when HP Tuners will be available on the Cruze?
 
#7 ·
no. Was this the Eco cruze or the lt, ltz?

In theory kind of yes, it should learn it some.

As far as hpt, you'd have to ask on their forum. I havent looked yet.
 
Discussion starter · #8 ·
This was the LT, the dealers salesmen said it just needs to learn your style some but I didn't know how much to believe that. Also isn't there some tsb's that have to be performed for the trans shifting? I was assuming they would have done that already if its on their lot but who knows
 
#9 ·
John02 said:
This was the LT, the dealers salesmen said it just needs to learn your style some but I didn't know how much to believe that. Also isn't there some tsb's that have to be performed for the trans shifting? I was assuming they would have done that already if its on their lot but who knows
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Well there is also break in time. I drove my friends SS the night before I bought mine, test drove mine w/ 11 miles on it. Felt slow as ****. Once it hit 1k miles on the ODO. Car woke up some. Was weird, but these days the ECU controls everything. I would say it may learn your driving, but it also is a breaking in limit as well. TSB's should be done at the dealer if they are available but you never know how proactive they are. You would need to have them scan the vin for recalls or flashes.
 
#11 ·
northvibe said:
...TSB's should be done at the dealer if they are available but you never know how proactive they are. You would need to have them scan the vin for recalls or flashes.
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...something I'd like all the car companys to do is have a button somewhere that makes the DIC display all the "recall / reprogrammings" (TSB) that have been performed on the car so that I, as the "owner" of the car, can truly know what "has" & "has not" been done to my car...sorta like the Version XX.YY.ZZZ displays shown by software programs.
 
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#12 ·
70AARCUDA said:
...something I'd like all the car companys to do is have a button somewhere that makes the DIC display all the "recall / reprogrammings" (TSB) that have been performed on the car so that I, as the "owner" of the car, can truly know what "has" & "has not" been done to my car...sorta like the Version XX.YY.ZZZ displays shown by software programs.
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is onstar suppose to know if you have them? or just tell the dealer you do if your car goes in? I didnt pay to extend it to my SS...never used it. But my roommates are pretty sure they want it, after the trial period.
 
#13 · (Edited)
...such information really should always be maintained WITH the car...at least I think so.
 
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#14 ·
John02 said:
Hmm, are all drive by wire cars that unresponsive? It was terrible how long I had to wait for any response. Does it get better over time as the computer learns?

Also does anyone know when HP Tuners will be available on the Cruze?
Click to expand...
They are different car to car IMO. My G6 is slower than the Civic on throttle response. It may be due to different experience levels from both companies or their overall set up to the car.
 
Discussion starter · #16 ·
Well I bought a Cruze today! I didn't really notice the lag as bad this time. Not sure if it was the longer test drive I went on or if the first one didn't have all it's TSB's or what. Either way, it hasn't been too bad on the lag.

However, one thing that did surprise me a little was at times according to the "average fuel economy" it was lower than I expected it to be, for example cruising at 70 got about 31 mpg, but maybe that's normal. Besides that, I love it, can't wait to drive it tomorrow.

And I might just think about that intake/exhaust/tune combo.
 
#17 ·
My car has a bit of lag when accelerating. Some days its worse than others but I immedietly see the RPM's shoot up it just takes a little bit to actually feel the car start acceclerating. This heavily depends on what gear I'm in but most of the time I'm very happy with my Cruze and how it drives and know to forgive it when it does lag a bit as it's only a 1.4L engine. Additionally, at 70 that sounds about right for mileage. I believe you will get the advertised mileage at around 55MPH, however, once the engine breaks in your mileage may improve.
 
#18 ·
welcome to a turbo vehicle. It is physically impossible to eliminate all turbo lag. You can minimize it though but not get rid of it.
Any and every turbo has it.
 
#19 ·
I still dont know what you guys are talking about when you say the the turbo throws you back or you can feel it kick in...I never felt that when I drove the eco manual. It felt like a smooth accel, nothing crazy fast. At 50-60mph I down shifted to 3rd and then it had some power.
 
#20 ·
...cause and effect.

...more exhaust "causes" the turbine blades to spin faster (the resulting effect); but, more exhaust has to occur "first".
 
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