2004 Renault Laguna Running too fast

2004 RENAULT LAGUNA
112,000 MILES • 4 CYL • FWD • MANUAL
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ROBERT TODD
  • MEMBER
  • 1 POST
When starting from cold, engine runs fast initially as expected. As engine heats up the higher revs are maintained. Switching off engine and restarting usually rectifies problem, but not always. In conjunction, the temperature guage does not quite reach the normal running temperature.
Diesel 1.9 DCI
Feb 5, 2010 at 11:09 PM
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DAVE H
  • ✓Experienced Mechanic
  • 13,383 POSTS
check coolant level is good .. replace thermostat .. and check/replace coolant temp sensor ..
Feb 6, 2010 at 9:11 PM
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