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			#1  
			
			
			
			
			
		 
		
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				Engine mis fire at low revs 300CE Coupe
			 
			
			
			Hi, 
		
		
		
			
		
		
		
		
		
		
		
			I have an '89 300CE Coupe 3sp Auto. At low revs and worse when engine is warm I get a bad mis fire - the engine has no power at all. The only way to get going is to use very light throttle to get the speed and revs up a little or use low range - once over about 1500rpm it performs fine with no hint of the problem. Also the car is a little reluctant to start - have to use lots of pedal I'm suspecting high tension plug leads - am I correct? Cheers Rich Last edited by crazyquiff; 05-12-2004 at 10:09 AM.  | 
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			#2  
			
			
			
			
			
		 
		
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			Check your plugs, if one of them is moist your head gasket is gone.  I just replaced one on my 92 300 CE that had the same problem. 
		
		
		
			
		
		
		
		
		
			Cheers, Steve 
				__________________ 
		
		
		
		
		
	
	97 S500 Coupe 139Kmi. 92 300CE 150Kmi. Sold 89 F250 Diesel 220Kmi. Dead 98 GMC 1500 160K.  | 
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			#3  
			
			
			
			
			
		 
		
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			Steve, 
		
		
		
			
		
		
		
		
		
		
		
	
	Thanks for the note. I've also read a post about the cold start injector leaking and causing the problem - checked that last night and doesn't seem to be the case. But, Steve, I can't get the logic behind the head gasket being the problem. The symptoms just don't seem right to me. I suspect maybe a vacuum leak somewhere. Could you have corrected the problem while changing the gasket? Has your problem been totally solved now? Was it exactly the same? Cheers Rich  | 
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			Problem sorted - damp in the dizzy cap - so i dried it out and cleaned up all the posts and rotor arm. 
		
		
		
			
				No cost solution!  | 
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