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				Another stalling/surging idle thread....
			 
			
			
			my 1991 190E 2.6 is having stalling/surging idle problems agian. I am hearing like air bubbles near the fuel pump/fuel tank area.   
		
		
		
			
		
		
		
		
		
			What could be causing this? Whats new/replaced inculdes: ovp mas fuel tank filter coolant temperature sensor spark plugs 
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	1986 300SDL, 211K,Dealership serviced its whole life 1991 190E 2.6(120k) 1983 300D(300k) 1977 300D(211k)  | 
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			Did you pop a code?? sounds like fuel cap is bad. Try starting without cap on, rough idle may go away.
			
				
			
		 
		
		
		
			
		
		
		
		
		
		
		
	
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