ECM Removal
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Joined: May 2012
Posts: 69
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From: Cumming GA
ECM Removal
All... silly question to follow.
Need to remove then ECM to get to the clutch fluid reservoir and see the obvious bolt at the hood latch, but there appears to be a bracket beneath, holding it in place. Dont see/feel a bolt though.
Is there a trick to removing the module?
Thx in advance.
Need to remove then ECM to get to the clutch fluid reservoir and see the obvious bolt at the hood latch, but there appears to be a bracket beneath, holding it in place. Dont see/feel a bolt though.
Is there a trick to removing the module?
Thx in advance.
Thread Starter
Advanced
Joined: May 2012
Posts: 69
Likes: 1
From: Cumming GA
Ok...calling myself out - on two fronts. First, I found the two bolts on the top of the ECM, to either side. Was so focused on the bracket at the bottom, I missed the obvious.
Second, I have been driving around with a less than optimally performing clutch for the past 2+ years. When I moved the ECM and looked in the clutch fluid reservoir, it was bone dry - hence my soft, mushy pedal with immediate engagement. Topped off the fluid, re-installed the ECM and took it out for a test drive. HOLY CRAP - the car is quicker than I have ever felt it!
Must have been driving with a less than fully dis-engaged clutch since I bought it. Coming from other non-performance cars, my Vette was quick, but always seemed to be slightly underwhelming. Tonight I found the beast that always lurked within.
Now I wonder... any real damage done?
Second, I have been driving around with a less than optimally performing clutch for the past 2+ years. When I moved the ECM and looked in the clutch fluid reservoir, it was bone dry - hence my soft, mushy pedal with immediate engagement. Topped off the fluid, re-installed the ECM and took it out for a test drive. HOLY CRAP - the car is quicker than I have ever felt it!
Must have been driving with a less than fully dis-engaged clutch since I bought it. Coming from other non-performance cars, my Vette was quick, but always seemed to be slightly underwhelming. Tonight I found the beast that always lurked within.
Now I wonder... any real damage done?
Melting Slicks
Joined: Jun 2013
Posts: 3,065
Likes: 39
Ok...calling myself out - on two fronts. First, I found the two bolts on the top of the ECM, to either side. Was so focused on the bracket at the bottom, I missed the obvious.
Second, I have been driving around with a less than optimally performing clutch for the past 2+ years. When I moved the ECM and looked in the clutch fluid reservoir, it was bone dry - hence my soft, mushy pedal with immediate engagement. Topped off the fluid, re-installed the ECM and took it out for a test drive. HOLY CRAP - the car is quicker than I have ever felt it!
Must have been driving with a less than fully dis-engaged clutch since I bought it. Coming from other non-performance cars, my Vette was quick, but always seemed to be slightly underwhelming. Tonight I found the beast that always lurked within.
Now I wonder... any real damage done?
Second, I have been driving around with a less than optimally performing clutch for the past 2+ years. When I moved the ECM and looked in the clutch fluid reservoir, it was bone dry - hence my soft, mushy pedal with immediate engagement. Topped off the fluid, re-installed the ECM and took it out for a test drive. HOLY CRAP - the car is quicker than I have ever felt it!
Must have been driving with a less than fully dis-engaged clutch since I bought it. Coming from other non-performance cars, my Vette was quick, but always seemed to be slightly underwhelming. Tonight I found the beast that always lurked within.
Now I wonder... any real damage done?
Thread Starter
Advanced
Joined: May 2012
Posts: 69
Likes: 1
From: Cumming GA
Didn't mean to imply that the addition of clutch fluid gave me more performance, only that it seems to have enabled the car to better utilize the performance that was there all along.
Guessing that the low fluid was causing the clutch to never fully engage the transmission, so I was only sending a percentage of the available power to the great wheels. Whatever the case, the change in throttle response is significant and noticeable where it counts... In the driver's seat.
Curious to see what effect, if any, this has on mpg too. Will let you know.
Guessing that the low fluid was causing the clutch to never fully engage the transmission, so I was only sending a percentage of the available power to the great wheels. Whatever the case, the change in throttle response is significant and noticeable where it counts... In the driver's seat.
Curious to see what effect, if any, this has on mpg too. Will let you know.
Pro
Joined: Mar 2009
Posts: 702
Likes: 259
From: Middletown Delaware
Didn't mean to imply that the addition of clutch fluid gave me more performance, only that it seems to have enabled the car to better utilize the performance that was there all along.
Guessing that the low fluid was causing the clutch to never fully engage the transmission, so I was only sending a percentage of the available power to the great wheels. Whatever the case, the change in throttle response is significant and noticeable where it counts... In the driver's seat.
Curious to see what effect, if any, this has on mpg too. Will let you know.
Guessing that the low fluid was causing the clutch to never fully engage the transmission, so I was only sending a percentage of the available power to the great wheels. Whatever the case, the change in throttle response is significant and noticeable where it counts... In the driver's seat.
Curious to see what effect, if any, this has on mpg too. Will let you know.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Didn't mean to imply that the addition of clutch fluid gave me more performance, only that it seems to have enabled the car to better utilize the performance that was there all along.
Guessing that the low fluid was causing the clutch to never fully engage the transmission, so I was only sending a percentage of the available power to the great wheels. Whatever the case, the change in throttle response is significant and noticeable where it counts... In the driver's seat.
Curious to see what effect, if any, this has on mpg too. Will let you know.
Guessing that the low fluid was causing the clutch to never fully engage the transmission, so I was only sending a percentage of the available power to the great wheels. Whatever the case, the change in throttle response is significant and noticeable where it counts... In the driver's seat.
Curious to see what effect, if any, this has on mpg too. Will let you know.
Thread Starter
Advanced
Joined: May 2012
Posts: 69
Likes: 1
From: Cumming GA
Maybe it is my imagination, but after owning the car for 2+ years it feels noticeably different. Whatever the case, it doesn't feel worse, so lucky me.
As for a leak, that is the weird part - have never had any fluids on the garage floor and see no signs of any visible, outward leak/residue/staining. Don't believe brake fluid evaporates, so can only chalk it up to long term neglect on my part and that of the PO. Won't be the case going forward.
As for a leak, that is the weird part - have never had any fluids on the garage floor and see no signs of any visible, outward leak/residue/staining. Don't believe brake fluid evaporates, so can only chalk it up to long term neglect on my part and that of the PO. Won't be the case going forward.
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Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Maybe it is my imagination, but after owning the car for 2+ years it feels noticeably different. Whatever the case, it doesn't feel worse, so lucky me.
As for a leak, that is the weird part - have never had any fluids on the garage floor and see no signs of any visible, outward leak/residue/staining. Don't believe brake fluid evaporates, so can only chalk it up to long term neglect on my part and that of the PO. Won't be the case going forward.
As for a leak, that is the weird part - have never had any fluids on the garage floor and see no signs of any visible, outward leak/residue/staining. Don't believe brake fluid evaporates, so can only chalk it up to long term neglect on my part and that of the PO. Won't be the case going forward.
Safety Car
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From: Fredonia WI
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As for a leak, that is the weird part - have never had any fluids on the garage floor and see no signs of any visible, outward leak/residue/staining. Don't believe brake fluid evaporates, so can only chalk it up to long term neglect on my part and that of the PO. Won't be the case going forward.
It is possible for the slave cylinder to leak. If it's small, it'll stay in the bellhousing and you won't see it. This happened to mine.
Racer
Joined: Aug 2006
Posts: 415
Likes: 0
From: Utah
For this setup, the easiest way to remove the ECM is to remove the one bolt underneath the ECM and slide it off the bracket.
The clutch master cylinder is right under the ECM.
