Diagnosing This Engine
#1
Diagnosing This Engine
Car in question is a 1992 Lexus SC400 with 99 thousand miles, seems to me that there's an intermittent misfire, used to have some shaking but that hasn't been the case at all recently but it still feels like it's down on power, opionions please on if it sounds healthy;
Also changed all 8 spark plugs and this is my biggest concern, seems like a valve cover but I've also read that this could signify low compression...
The new sparkplug after a bit of drving and running, less than 5 miles. Used 8 NGK BKR6EGP's
The new sparkplug after a bit of drving and running, less than 5 miles. Used 8 NGK BKR6EGP's
#4
You will have to remove the distributor caps and check the rotors. Look for excess wear on the contact tip and caps. 6mm or 8 mm bolt holds the rotors to the shaft on the distributor.
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