GSh misfire issues?!?
Driver School Candidate
Joined: Aug 2009
Posts: 8
Likes: 1
From: CA
Hey gang, I just had a mis fire 1,5,6 check engine light. I had it reset to see if it comes back. If it does what do you think...its an 07 with 50k. I have read all your symptoms and am wondering if it has any relation to the valve spring recall job?
Thread Starter
Rookie
Joined: Mar 2013
Posts: 66
Likes: 1
From: United Kingdom
Has the misfire stopped now or is it permanent?
Mine came and went as the oil temp was warming up but slowly got worse where it did it all the time under load, hot or cold! Turned out to be 1 duff coil pack plus 1 of the rocker cover gaskets leaking into one of the spark plug tubes, causing the coil pack to arc out and not give the spark plug its correct feed, so they cleaned up the coil pack and moved it to a different cylinder to make sure it was working and that was it!
So could b a coil pack/spark plug even though its throwing up multiple misfire codes! Do you get "multiple random cylinder misfire" code aswell (or something similar)??
Mine came and went as the oil temp was warming up but slowly got worse where it did it all the time under load, hot or cold! Turned out to be 1 duff coil pack plus 1 of the rocker cover gaskets leaking into one of the spark plug tubes, causing the coil pack to arc out and not give the spark plug its correct feed, so they cleaned up the coil pack and moved it to a different cylinder to make sure it was working and that was it!
So could b a coil pack/spark plug even though its throwing up multiple misfire codes! Do you get "multiple random cylinder misfire" code aswell (or something similar)??
3rd Gear
Joined: Apr 2023
Posts: 3
Likes: 0
From: CA
What ever happened?
Hello,
I stumbled upon your post from years ago. What ever happened and did they ever figure it out? I am dealing with this misfire 135 and already spent $2,500 changing out tons of stuff.
3rd Gear
Joined: Apr 2023
Posts: 3
Likes: 0
From: CA
air fuel sensor
plugs
fuel filer
fuel pump
fuel relay
all o2 sensors
gasket
coils
maf sensor
bunch of hoses
and ran injector cleaners
one shop said maybe change the injectors but at this point I have already spent $2,500 for all new parts and from what I read someone put in new injectors and still had the same problem.
has anyone solved their problem? I am still getting misfire 135
Yes used oem parts. Changed out these:
air fuel sensor
plugs
fuel filer
fuel pump
fuel relay
all o2 sensors
gasket
coils
maf sensor
bunch of hoses
and ran injector cleaners
one shop said maybe change the injectors but at this point I have already spent $2,500 for all new parts and from what I read someone put in new injectors and still had the same problem.
has anyone solved their problem? I am still getting misfire 135
air fuel sensor
plugs
fuel filer
fuel pump
fuel relay
all o2 sensors
gasket
coils
maf sensor
bunch of hoses
and ran injector cleaners
one shop said maybe change the injectors but at this point I have already spent $2,500 for all new parts and from what I read someone put in new injectors and still had the same problem.
has anyone solved their problem? I am still getting misfire 135
But still this doesnt mean you have the same issue. Did you take it to the dealership and pay for 1 hours worth of diagnostics? $2500 thats a lot of money, your dealing with a slime ball mechanic whos not experienced in diagnostics. 1-2 hours is all it takes to figure out a misfire. You have a mechanic thats guessing and wasting your money.
1st Gear
Joined: May 2024
Posts: 1
Likes: 0
wow sounds like your having some serious issues with getting it repaired! Was your misfire intermittent or did it happen under the same conditions every single time (like mine)? Did they charge you for VVTi gear assembely? As i hate to think how much that would cost especially as mine has almost double your mileage! Thinking about it, this could b part of the issue I'm having, if the VVTi is oil pressure activated, and its blocked and not letting cold thicker oil to flow through, it could cause my problem, then as the oil thins out with heat it works like normal! Really hope that isn't the case though!!!!!
Would of sold it by now as costing too much to run but who's going to want to buy a hybrid with 152k on the clock
Would def buy another lexus though, so far customer service has been fantastic
Would of sold it by now as costing too much to run but who's going to want to buy a hybrid with 152k on the clock
Would def buy another lexus though, so far customer service has been fantastic
1/3/5 thats a whole half an engine, im betting you wash your engine a lot with water and maybe water got inside of the coil terminal plugs. I would remove all the harness plugs, inspect the connection make sure the rubber seal is inside of them. If you find moisture I would leave it unplug until it airs out
Thread
Thread Starter
Forum
Replies
Last Post
JeffTexas7
SC430 - 2nd Gen (2001-2010)
11
Dec 12, 2024 12:12 PM
BoostedE21
ES - 1st to 6th Gen (1990-2018)
3
Mar 10, 2010 09:20 PM
