06-05-2016 | #81 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
|
Re: Low RPMs bucking
Is the car driveable for long distances? What level of computer savvy do u have?
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
06-05-2016 | #82 |
Join Date: Aug 2006
Location: McLean, VA
Posts: 3,725
|
Re: Low RPMs bucking
Once again, as far as irregular clanking noise when HVAC is turned on, check how close belts are at belt tensioner pulley to belt coming up from the water pump. I had very similar noise. Turned out to be belt being too long.
|
06-05-2016 | #83 |
Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
|
Re: Low RPMs bucking
If you need a cheap scanner buy ALDL droid for Android phone or tablet plus the Bluetooth dongle.
http://www.corvetteforum.com/forums/...d-android.html
__________________
Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
06-05-2016 | #84 | ||||
Join Date: Aug 2014
Location: Trois-Rivieres (QC)
Posts: 473
|
Re: Low RPMs bucking
Quote:
Quote:
My computer level is easily intermediate-advanced. I'm the one that people call when their computer is broken (and full of virus most of the time). Quote:
Quote:
|
||||
06-05-2016 | #85 |
Join Date: Aug 2006
Location: McLean, VA
Posts: 3,725
|
Re: Low RPMs bucking
I think it's possible that you have more than one issue. YouTube posting of clanking noise at idle when HVAC is on (compressor engaging) is very similar to my experience. Bucking and hesitation maybe another issue.
Belt tensioner cannot be adjusted but belt lengths are available in 5 mm increments. When the drive belt is too long (and some belts sold as correct length for LT5 are 80.5 mm. I am currently running 80 mm) when AC pulley engage and disengage creating a light fluttering, tensioner bottoms out and starts tapping. Last edited by secondchance; 06-05-2016 at 10:03 PM. |
06-05-2016 | #86 | |
Join Date: Aug 2014
Location: Trois-Rivieres (QC)
Posts: 473
|
Re: Low RPMs bucking
Quote:
Reliable GM V8 they said... |
|
06-05-2016 | #87 | |
Join Date: Aug 2006
Location: McLean, VA
Posts: 3,725
|
Re: Low RPMs bucking
Quote:
Don't get discouraged and check the belt for proper length. Also, figure out a way to access engine parameters when stumbling. |
|
07-09-2016 | #88 |
Join Date: Mar 2013
Location: Roswell, GA
Posts: 234
|
Re: Low RPMs bucking
Any follow up?
__________________
1995 ZR1 #159 Ported,Corsa,4.10 Rear, Dual Disc RAM Clutch, Alum Flywheel, Haibeck Chip, ZFDoc Plates, Relocated Battery 400 rwhp 1992 ZR1 #280 Ported, Locked Secondary's, Flowmaster Exhaust, Haibeck Chip, 375rwhp 1996 Collectors LT4 (Stock) 1972 Convertible 434 Small Block 572 rwhp |
07-10-2016 | #89 |
Join Date: Aug 2014
Location: Trois-Rivieres (QC)
Posts: 473
|
Re: Low RPMs bucking
Took a break - currently working far away from where I live.
To be continued. Thanks! |
|
|