Crazy issues 1997 ls400- misfire, shudder
#1
Crazy issues 1997 ls400- misfire, shudder
So my LS is driving me crazy.! My car started having these misfires during idle, so i did the logical thing to do and changed the plugs and coils and cleaned out the intake manifold. in the process i rebroke the intake tube where it splits in multiple tubes (glued back together by previous owner). After i get it all back together my car goes full retard. when Im idle my car shudders but as soon as i start driving all is fine. then the day after, in idle my car shudders and tries to lunge forward, its shaky off the line but smoothes out when i start driving. then i would randomly loose power and when id full stop and start again it would be fine. and then if i idle to long, car shuts off.
please help.....!!!!!!!!
please help.....!!!!!!!!
Last edited by RA40; 05-22-16 at 07:13 PM. Reason: descriptive title
#2
Welcome to Club Lexus.
The FAQ covers many areas of maintenance:
https://www.clublexus.com/forums/ls-...questions.html
This may be relevant if not for supplemental reading:
https://www.clublexus.com/forums/ls-...capacitor.html
Recheck the vacuum lines and or replace any stiff ones. The ones to the intake plenum are quite critical.
The FAQ covers many areas of maintenance:
https://www.clublexus.com/forums/ls-...questions.html
This may be relevant if not for supplemental reading:
https://www.clublexus.com/forums/ls-...capacitor.html
Recheck the vacuum lines and or replace any stiff ones. The ones to the intake plenum are quite critical.
#3
Im actually a returning user, just forgot my log in lol.
but yea iv already replaced all my caps 2 years ago, and i got the good ones as recommended. I already pulled my ECU to check if the caps blew again. it all looks good.
I dont know much about vaccum tubes but ill start reading on them
but yea iv already replaced all my caps 2 years ago, and i got the good ones as recommended. I already pulled my ECU to check if the caps blew again. it all looks good.
I dont know much about vaccum tubes but ill start reading on them
#4
So my LS is driving me crazy.! My car started having these misfires during idle, so i did the logical thing to do and changed the plugs and coils and cleaned out the intake manifold. in the process i rebroke the intake tube where it splits in multiple tubes (glued back together by previous owner). After i get it all back together my car goes full retard. when Im idle my car shudders but as soon as i start driving all is fine. then the day after, in idle my car shudders and tries to lunge forward, its shaky off the line but smoothes out when i start driving. then i would randomly loose power and when id full stop and start again it would be fine. and then if i idle to long, car shuts off.
please help.....!!!!!!!!
please help.....!!!!!!!!
#6
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