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Would a stuck open thermostat make the engine.
2000 KIA SEPHIA
Hi would a stuck open thermostat make the engine run rough, also could a clogged gas cap do the same?
have the same problem?
Thursday, December 22nd, 2011 AT 4:42 AM
The stuck open thermostat would not cause the problem but a faulty gas cap would as it involves the EVAP system.
Thursday, December 22nd, 2011 AT 12:01 PM
The reason I suspect this to be atleast part of the issue is that it happens even more intensely after I get gas-I will have the cap checked by a mechanic(pressure gauge I suspect) or what?
Thanks for the response
Thursday, December 22nd, 2011 AT 3:32 PM
Replace the thermostat as well if it is suspect, if stuck open the engine may run to cool and this will affect tune as the coolant temp sensor, fit a new cap and report back what the effect is.
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Friday, December 23rd, 2011 AT 8:56 PM
Thanks for the reply-I followed what you recommended to do and it did smooth out substancially-
Saturday, December 24th, 2011 AT 9:10 PM
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