2000 SS M6 hesitation and clunking! *Update with codes!!*
Thread Starter
Teching In
Joined: Aug 2015
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From: Kansas
2000 SS M6 hesitation and clunking! *Update with codes!!* Just bought the car a few days ago has 51k and it has a small hesitation from 2500-3000rpms and then it pulls hard again. Cleaned the maf already replaced plugs. Here are the how the plugs look. If you zoom into the first picture you can tell there is a small white dot on the tip and the second picture shows how the passenger side looked. And those don't have that white dot on the tip
What could it be? 02's?
Also tonight I wanted to see if my clutch would be slipping so I slowed down till about 30 and I put it in 6th and a gave it throttle and it started shaking and clunking. What could that be??
What could it be? 02's?
Also tonight I wanted to see if my clutch would be slipping so I slowed down till about 30 and I put it in 6th and a gave it throttle and it started shaking and clunking. What could that be??
Last edited by 6ohpowa; Oct 27, 2016 at 08:36 PM.
Not sure about the hesitation but at 30mph in 6th I'd suspect the clunking and shaking is simply the engine saying "nope" because the load is too great for such a low rpm - the fine line between staying running and stalling out
Thread Starter
Teching In
Joined: Aug 2015
Posts: 8
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From: Kansas
Okay. And yea that really doesn't bother me cause it doesn't slip when I do it in other gears. Plus it can be something simple like a bushing
Bucking from driving in too high of gear only damages the car. Not just bushings, it hurts the motor.
Does this only happen when overloading the motor?
Is your clutch slipping too? (clutch slippage testing in 2nd or 3rd gear, ideally with total traction and high torque output..... uphill or on the dyno for example)
If its bucking in other gears too, what are your mods and who tuned it?
Does this only happen when overloading the motor?
Is your clutch slipping too? (clutch slippage testing in 2nd or 3rd gear, ideally with total traction and high torque output..... uphill or on the dyno for example)
If its bucking in other gears too, what are your mods and who tuned it?
Thread Starter
Teching In
Joined: Aug 2015
Posts: 8
Likes: 0
From: Kansas
Bucking from driving in too high of gear only damages the car. Not just bushings, it hurts the motor.
Does this only happen when overloading the motor?
Is your clutch slipping too? (clutch slippage testing in 2nd or 3rd gear, ideally with total traction and high torque output..... uphill or on the dyno for example)
If its bucking in other gears too, what are your mods and who tuned it?
Does this only happen when overloading the motor?
Is your clutch slipping too? (clutch slippage testing in 2nd or 3rd gear, ideally with total traction and high torque output..... uphill or on the dyno for example)
If its bucking in other gears too, what are your mods and who tuned it?
yes it only happens when I'm driving if I'm just driving normal I can feel it if I'm driving it hard I can feel it does it sometimes not all the time. And no my clutch isn't slipping I think because I've tried going around 20 or so in 3rd gear and it pulls pretty hard.(the rpms do not go up faster then the speedo).
It doesn't do it in other gears just that single time I tried it.
Thread Starter
Teching In
Joined: Aug 2015
Posts: 8
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From: Kansas
Update!! Went to oreilly to have my codes pulled (no cel) and they got these p0137, p0157, p0327 which those 3 are intermediate and p1412 twice which is current. First two are o2 sensors 3rd is knock sensor and the last one was air pump
All of which can cause running rough and hesitation on the throttle.
Have fun pulling the manifold, be careful cleaning with a vacuum and always swipe crud away from intake ports. LS1howto has instructions with pictures if you never done it before. Also be very careful with vac lines and rubber hoses, they are 16 years old now and tend to break easily.
Have fun pulling the manifold, be careful cleaning with a vacuum and always swipe crud away from intake ports. LS1howto has instructions with pictures if you never done it before. Also be very careful with vac lines and rubber hoses, they are 16 years old now and tend to break easily.
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Suggestion - while your in there with the intake manifold off, get the LS6 valley cover. The PCV is much cleaner both in looks and the amount of oil it bypasses vs the LS1 PCV
Knock signal will pull timing
O2 readings off will jack with AFR, sometimes leaning out causing detonation and sometimes running rich causing bog condition