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Boy…that could be anything from fuel pressure, spark plug health to motor mounts. Put a vacuum gauge on it and see what you got vua the needle. Check the plugs for equal and good wear. I cant het to any tsb’s for that now but someone on here surely can. I’m curious as to what the needle on tje vacuum gauhe does at idle and with a good throttle snap.
Gm did have a tsb out for 99-04 aleros for a motor mount that needed shimmed up due to heavy vibration at idle I know.
tje do not know what that is ,,what your sayen is it could be bad or is everything,a lot of fix en ,,
i check the motor mount as far as i can till they look ok and i have seen bad motor mounts and these look ok ,,thank you
If it’s a 3 cylinder engine they all vibrate. By turning up the idle speed manually you will mess up the TPS voltages as well as the IAC counts. You could try cleaning the throttle body and IAC valve as it might help some. You might also check the engine and transmission mounts for wear or cracked rubber.
Maybe you should repair the exhaust so it doesn’t touch the body.
[quote=”wysetech” post=82309]If it’s a 3 cylinder engine they all vibrate. By turning up the idle speed manually you will mess up the TPS voltages as well as the IAC counts. You could try cleaning the throttle body and IAC valve as it might help some. You might also check the engine and transmission mounts for wear or cracked rubber.
Maybe you should repair the exhaust so it doesn’t touch the body.[/quote] well i found a throttle screw with a nut and ajusted it a little to smooth out the idle it helps i hope it dose not hurt to much ,bad to tps volts and ica ,motor mounts look good exhaust rubbers look ok all the way down to the muffler .there was or is a place for the middle of the muffler pipe were a bracket was that is missing or was lefted off this model,99 i replaced the distributor cap needed it ,spark plugs,the cod 0130 says o2 bank1 malfunction well
yes i have been reading about idle speed sensor ,if bad could cause these systems ,well the obo says the o2 sensor is got problems #1 o2 i need to check it ,to see if it is working , i seen etcg video on that,, and think iam ,ready to use a meter ,,,,we will see ,if i can do it like he did ,,,i read how to use my meter ,i hope to get a change to do it soon ,, :sick: :blink:
[quote=”wysetech” post=82309]If it’s a 3 cylinder engine they all vibrate. By turning up the idle speed manually you will mess up the TPS voltages as well as the IAC counts. You could try cleaning the throttle body and IAC valve as it might help some. You might also check the engine and transmission mounts for wear or cracked rubber.
Maybe you should repair the exhaust so it doesn’t touch the body.[/quote] yes 3 cylinder ,TPS/ICA ,i did ajust a little ,it helps here’s hopen it will be ok ,,throttle and IAC check in to that ,check mounts seem ok ,,,exhaust is not touching body,down there look ok, noise seems to be coming from catalytic converter very bad ,repair manual say bad if converter bad , other then that when warmed up runs like a sports car , thanks
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