Crossfire SRT6 A place to discuss SRT-6 specific topics.

Sometimes Sluggish acceleration

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  #61 (permalink)  
Old 03-02-2007 | 01:08 PM
msheredy's Avatar
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Default Re: Sometimes Sluggish acceleration

Originally Posted by Rydiak
I can do better than that. Here is what we used: http://www.sears.com/sr/javasr/produ...seBVCookie=Yes
Gotta love tools... especially specialty tools such as those. I never knew something like that even existed.
 
  #62 (permalink)  
Old 03-02-2007 | 02:13 PM
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Default Re: Sometimes Sluggish acceleration

I didn't either.
 
  #63 (permalink)  
Old 03-23-2007 | 11:33 AM
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Default Re: Sometimes Sluggish acceleration

Sorry for bumping this thread, but I too have this problem. I just bought the SRT6 last night and didn't notice the problem until today when I drove it a little longer...Thank god for this forum, it will be a huge help in explaining and diagnosing the problem! The car has 35k on it and I notice the "sluggish" feel once the car gets up to temp. So I guess its back to the dealer already...Hopefully they wont give me any problems.
 
  #64 (permalink)  
Old 03-23-2007 | 11:39 AM
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Default Re: Sometimes Sluggish acceleration

Print this thread if you are worried...other members have went in with this as ammo, and had no problems! Guess you had better do it before your car rolls over 36,000 miles!!!
 
  #65 (permalink)  
Old 03-23-2007 | 10:36 PM
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Default Re: Sometimes Sluggish acceleration

My supercharger started cutting out yesterday evening and did it several more times today. Funny thing is that the BAS/ESP light comes on at about the same time and stays on until the engine is turned off and restarted.

I have an appointment with my dealer Monday. Fortunately the dealer has been competent with prior problems.

Brent
 
  #66 (permalink)  
Old 03-25-2007 | 02:19 AM
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Default Re: Sometimes Sluggish acceleration

So glad to found this site i was about to get rid of my car or maybe find an attorney after a month & several trips to chrysler & a service writer telling me im not supposed to be driving the car hard.

Luckily i kept my composure & told him that is what i bought the car for.

I'll be taking my car in to tell them how to fix it.

My car has 3k mi on it.
 

Last edited by z1 crossfire; 03-25-2007 at 02:40 AM.
  #67 (permalink)  
Old 03-25-2007 | 03:06 AM
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Default Re: Sometimes Sluggish acceleration

It's an easy fix that takes no more than 30 minutes to complete. I am so surprised that Chrysler has no idea how to fix it.
 
  #68 (permalink)  
Old 03-25-2007 | 09:56 AM
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Default Re: Sometimes Sluggish acceleration

- Rydiak

I'm glad to hear its not an elaborate fix...

I went to the dealer yesterday and presented my case to the manager. I told him that almost EVERYONE that owns an SRT6 has this same problem. He was very nice about it and he took the printout I had of this discussion and left for 5 minutes and came back. He said it would be replaced. I also had other issues with the car such as the "rattle" in the hatch and the rims were chewed up from the previous owner hitting curbs or such...He told me he would take care of everything. So far so good I suppose, I'll cross my fingers!
 
  #69 (permalink)  
Old 04-01-2007 | 02:33 AM
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Default Re: Sometimes Sluggish acceleration

I'm glad it has been so easy for every one here ... I showed my service writer the site he took the info to his manager then came back & politely told me,
the shop manger said i need to work with him since this was not an official chrysler site... if it didn't fix the problem i would need to pay half the repair bill...
Oh yeah that finally did it with me I'm an easy going guy...
I told him nicely to go back & tell his boss that we could do that as long as he realized what his QC would look like when i sent it back in...I just had my chrysler 300 C in the shop for the same tranny leak 3 times.
& I also let him know that i would be talking with the owners son who i know...
& let him know **** rolled down hill...

He came back & very politely said my part would be in next week & they would get it taken care of.

Can't imagine why things changed so much.
 
  #70 (permalink)  
Old 04-02-2007 | 01:55 AM
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Default Re: Sometimes Sluggish acceleration

My dealer, Rancho Chrysler, determined that my supercharger clutch is bad and so the whole supercharger assembly will need replacement (the clutch is not a separate assembly). Initially the acceleration problem mimicked the symptoms of a failing aux water pump but last Sunday I lost all boost regardless of coolant temp. The dealer confirmed a faulty clutch by powering the clutch directly and still not having it engage.

Another problem I have is that for the last 2 or 3 times I've fueled up, I could only dribble fuel into the gas tank else back pressure would shut the fuel pump off. I figured there was a clogged vent line or stuck valve in the tank system and thought it would be a simple repair. Oh was I wrong! The dealer is also going to replace the complete fuel tank assembly because again, the system does not have individual components capable of being replaced.

The BAS/ESP light coming on is caused by a bad wheel sensor to that will also be replaced.

The dealer will also replace the door seals to correct the excessive wind noise I have. All parts are on order and should be in midweek. My service manager, Mike Lewis, wants to me to bring my car back the following Monday so they have all week to work on it. This also allows me to burn as much gas as possible prior to the tank being pulled.

Though I'm not happy with the problems with my car, I'm very pleased with the excellent warranty coverage provided by Rancho Chrysler. Whatever the problem is Rancho will do whatever is necessary to fix it and keep the customer satisfied. For those of you considering buying a new Chrysler and are anywhere near San Diego, I strongly urge you to buy at Rancho Chrysler.

Brent
 
  #71 (permalink)  
Old 04-02-2007 | 01:08 PM
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Default Re: Sometimes Sluggish acceleration

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Last edited by AMGLover; 08-13-2007 at 11:22 AM.
  #72 (permalink)  
Old 04-04-2007 | 01:04 PM
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Default Re: Sometimes Sluggish acceleration

Took mine out for about 20 minutes the other day. I let it warm up before taking it out. At one point I slowed down on a back road to about 10-15 mph and romped it. At 60 mph, it felt like it had absolutely no power. I let off the gas and continued as normal.

Does this drastic drop in power sound like it's due to the pump/intercooler issue described here?
 
  #73 (permalink)  
Old 04-04-2007 | 02:15 PM
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Default Re: Sometimes Sluggish acceleration

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Last edited by AMGLover; 08-13-2007 at 11:22 AM.
  #74 (permalink)  
Old 04-04-2007 | 04:37 PM
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Default Re: Sometimes Sluggish acceleration

Originally Posted by RPM
Took mine out for about 20 minutes the other day. I let it warm up before taking it out. At one point I slowed down on a back road to about 10-15 mph and romped it. At 60 mph, it felt like it had absolutely no power. I let off the gas and continued as normal.

Does this drastic drop in power sound like it's due to the pump/intercooler issue described here?
Yeah it could be your IC pump. Try ordering the Ford Lightning IC pump. I hear they are a better quality part compared to the SRT6, it should be a drop in part with no modification.
 
  #75 (permalink)  
Old 04-04-2007 | 04:40 PM
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Default Re: Sometimes Sluggish acceleration

Originally Posted by Maxwell
Yeah it could be your IC pump. Try ordering the Ford Lightning IC pump. I hear they are a better quality part compared to the SRT6, it should be a drop in part with no modification.
Unfortunately false. Made by the same company (Bosch) on the same assembly line. The Ford Lightning pump just has a different tube diameter on it (you can correct this by swapping the actual pump from the old MB pump, as it is only the motor that burns out) and different wire connectors (you need to fashion your own). The motors are the same though.
 
  #76 (permalink)  
Old 05-23-2007 | 07:30 PM
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Default Re: Sometimes Sluggish acceleration

Alright...looks like I am now having the same problem at 35,000 miles.
 

Last edited by vetofunk; 06-04-2007 at 04:39 PM.
  #77 (permalink)  
Old 05-23-2007 | 08:21 PM
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Default Re: Sometimes Sluggish acceleration

The Renntech pulley's are VERY hard to differentiate from the stock pulleys, so I think you'd be okay. The IC pump failing doesn't even throw a CEL, just sometimes a quiet system code that says the intake temps were too high. Hopefully you have a knowledgeable local dealership who can listen and understand what the problem is and how to fix it. Otherwise, come to the Chicago suburbs and I'll fix the IC pump myself.
 

Last edited by Rydiak; 05-23-2007 at 09:20 PM.
  #78 (permalink)  
Old 05-23-2007 | 08:45 PM
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From: I'm from the Chicago burbs
Default Re: Sometimes Sluggish acceleration

Originally Posted by AMGLover
Not saying that you folks aren’t having SC problems...but let me beat the other end of this dead horse! As a previous non SRT crossfire owner, this is behavior that is also exhibited in the non AMG versions of the car. The primary reason is the Mercedes-Benz 722.5/ 5G-TRONIC that is behind the mill. Due to engine/transmission management, the kick-down shift points are electronically influenced, and the shift comport can be improved partially by ignition timing manipulation (The Spirit Booster actually impacts both the ECU and the TMS). During the warm-up phase the shift points are raised via output signals from the electronic engine system to improve exhaust gas emissions.

Additionally it is a DRIVER ADAPTIVE system that “learns” throttle response patterns. Often you will be tooling around through the neighborhood with the top down soaking up the sun – RPM’s loafing @ 1,200 - 1,500 rpm. You get to the stop sign at the street that merges / intersects that #@$% road that is jammed with idiots ripping by at 55 – you spot a pocket, floor it…and hey where is the vroom vroom? Thank – you mister driver adaptive tranny! Several work around …turn off ESP at light, or downshift into the stop and leave it in 1st. AMG did fiddle with the ECU/TMS but it still retains the core MB “gentle acceleration” programming that characterizes the MB vs. BMW difference. So I would encourage you to experiment and judge for yourself how the transmission character changes based on how you drive the beast.

Cheers.
Also big problem chrysler mechanics not knowing what they are doing. Unless of course you are lucky enough to find someone certified to work on our cars. I was lucky to find one.
 
  #79 (permalink)  
Old 05-23-2007 | 11:21 PM
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From: Montomgery, IL
Default Re: Sometimes Sluggish acceleration

Well my car is still under warranty so I will try the dealership. If that doesn't work out, I will get a hold of you!

Thanks!
 
  #80 (permalink)  
Old 05-23-2007 | 11:52 PM
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Default Re: Sometimes Sluggish acceleration

Originally Posted by RPM
Took mine out for about 20 minutes the other day. I let it warm up before taking it out. At one point I slowed down on a back road to about 10-15 mph and romped it. At 60 mph, it felt like it had absolutely no power. I let off the gas and continued as normal.

Does this drastic drop in power sound like it's due to the pump/intercooler issue described here?
How many times did this happen to you?

My experience was I was sitting in traffic for a long time on a hot Cali day. Got on the freeway and gunned it and no power, only got up to 60 mph and was afraid to push it any faster. Let the car cool down for a few hours and problem is gone and haven't experienced it since.

Took it to the dealer and they didn't see any problem with the IC pump. I'm guessing it was heat soak that I experienced that day.
 


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