Differential noise and check engine soon light
07-22-2011, 01:24 AM
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Differential noise and check engine soon light New guy here got a couple questions about my bone stock 98 Z-28 i have owned for 4 days. When i am driving straight down the hiway it sounds like the differential is moaning. Simple fix or complete rebuild? it also whines while turning left or right. And now to the check engine light, its off usually but when i open her up the light comes on and stays on for a while and goes off. i run 91 octane and she has 152,000 miles on her and set for 3 years before i bought her. Any suggestions?
07-28-2011, 08:14 PM
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well i figured out the differential noises. Added limited slip lube in the diff that fixed the whining while turning and found out the rear u-joint was bad. the check engine light is still a mystery had it put on a computer and both #1 o2 sensors were bad but wouldnt the light stay on if they were bad, can the o2 sensors be cleaned any info would be greatly appreciated
