2004 LS430 starts missing when started or sometimes while running. Can usually stop the shaking by shifting to N and restarting engine while stopped or coasting. ECU bad or …?

Asked by Oct 22, 2016 at 12:51 AM about the 2004 Lexus LS 430 Base

Question type: Maintenance & Repair

2004 LS430 starts missing when started or sometimes while running.  Can
usually stop the shaking by shifting to N and restarting engine while stopped
or coasting.  ECU bad or …?

1 Answer

260

Before you go replacing ecms..etc .pull each sprk plugs from its tube .if you see oil in any of 1 or all of them you'll need to replace the valve cover gasket amd tube seals .pretty easy to do . If oil is in the tubes it will cause a.miss because the connector to the plug is oil coated once started and a lil acceleration it will usually b urn off enough smooth out the miss ..while.driving it .. very con issue on alot of cats with speak plugs that got thru the valve cover ..Good luck

Your Answer

Add photo

Related Questions

  • High pitched beep and warning lights all on 1 answer

    My 2004 Lexus SC430 all of sudden bad all the panel warning lights come on along with a high pitched continuous beep. What does it mean and how do I fix it?

    2004 Lexus LS 430 Base

    -

    Maintenance & Repair

  • Navigation System quit working. 1 answer

    We own a 2005 LS 430 with Nav. Today it was working fine then a screen showed up saying Please Insert CD. Then some japanese writing below that. I do not know where the CD to the Nav is much less w...

    2005 Lexus LS 430 Base

    -

    Maintenance & Repair

  • Horn does not blow 3 answers

    Horn does blow when pressed

    2005 Lexus LS 430

    -

    Maintenance & Repair

  • Should I buy a new ES 330 or a used 2004 LS? 5 answers

    The money is about the same and I really can't afford more. I currently have a 96 ES and a 03 RX. I plan on keeping it for several years.

    2004 Lexus LS 430

    -

    Shopping & Pricing

  • Can anyone help? My car wont start, it turns over but will not run. 43 answers

    I drove my lexus to work this morning and everything was fine, after work I tried to start my car and it would not start. This has never happened before, Ive checked fuses, oil, and belt. The oil ...

    2001 Lexus IS 300 Sedan

    -

    Maintenance & Repair

Search Lexus LS 430 Questions

Lexus LS 430 Experts

#1 Tom Demyan
Tom Demyan
Reputation 180
#2 OCIDD
OCIDD
Reputation 140
#3 fournote
fournote
Reputation 130
View All

Related Models For Sale

Used Mercedes-Benz S-Class
176 Great Deals out of 6,001 listings starting at $2,500
Used Lexus GS 300
28 Great Deals out of 860 listings starting at $3,295
Used Lexus GS 430
118 listings starting at $2,995
Used BMW 7 Series
181 Great Deals out of 5,861 listings starting at $1,600
Used Lexus SC 430
26 Great Deals out of 578 listings starting at $6,500
Used Toyota Avalon
338 Great Deals out of 15,811 listings starting at $2,100
Used Mercedes-Benz E-Class
769 Great Deals out of 22,838 listings starting at $1,600
Used Lexus LX 470
13 Great Deals out of 299 listings starting at $4,500
Used BMW 5 Series
658 Great Deals out of 17,687 listings starting at $1,500

Used Cars For Sale

2006 Lexus LS 430 Base For Sale
6 Great Deals out of 111 listings starting at $9,000
2005 Lexus LS 430 Base For Sale
18 Great Deals out of 229 listings starting at $6,951
2004 Lexus LS 430 Base For Sale
8 Great Deals out of 194 listings starting at $5,500
2003 Lexus LS 430 Base For Sale
4 Great Deals out of 162 listings starting at $2,700
2002 Lexus LS 430 Base For Sale
3 Great Deals out of 139 listings starting at $4,490