sina_smith39
Lexus LS uneven running issue
Summary of the thread
A 2007 Lexus LS hybrid was experiencing uneven running, a check engine light, and jerking during acceleration at 241,801 km. Possible causes considered included a fuel pump issue, dirty air filter, engine misfire, or crankshaft sensor problem. However, an exhaust leak was suggested as a potential cause, which was confirmed and repaired, resolving the issue.
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4 comment(s)
sina_smith39 (community.author)
An exhaust leak sounds plausible. Could a small leak really cause the engine to run so rough and trigger the check engine light?
james_schaefer5
Indeed. Even a minor leak can disrupt the system's pressure and sensor readings, leading to the issues you've described. I suggest visiting a workshop to have it checked.
sina_smith39 (community.author)
Thank you for the advice. It turned out to be a leak in the exhaust system, just as you suspected. Repair cost me 265€. Now it runs smoothly.
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LEXUS
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LS
james_schaefer5
Such symptoms are not uncommon. Before exploring more complex causes, inspect your exhaust system for any potential leaks.