Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: Benz280 on August 07, 2022, 01:21:32

Title: Cold start RPM
Post by: Benz280 on August 07, 2022, 01:21:32

Trying to identify :
Originally during a cold start RPM would start at 1300 / 1400 RPM . Shortly after ( Warming up ) RPM would drop to normal 800 range. ( This is correct start )
Now, cold start is around 500 then moves up to 800 range when warm.
Replaced thermostat in WRD , no change.
Any thoughts as to what could contribute ?   
   

Title: Re: Cold start RPM
Post by: ja17 on August 07, 2022, 13:53:04

Make sure that the little air filter on the WRD is not clogged.

Title: Re: Cold start RPM
Post by: Benz Dr. on August 07, 2022, 18:44:40

Stuck slide valve under the thermostat.

Title: Re: Cold start RPM
Post by: Benz280 on August 08, 2022, 01:28:11

Thank you JA17 & Dr. Benz
As for air filter - Working fine , not clogged at all .
WRD pulls strong air when cold , as engine warms valve closes , when warm ( 3 Min )  no air being pulled .