switch to synthetic oil, now getting knock Codes
02-27-2006, 11:39 AM
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switch to synthetic oil, now getting knock Codes I was using regular oil for about 12k miles. i decided to start using mobil 1 synthetic oil and now my car keeps get getting a knock sensor code. It comes on for a couple of days then goes away dor a couple of days.
I can actually here the engine knock. Has this happened to anyone else?
Will this hurt my motor?
please help. It's driving me crazy.
I can actually here the engine knock. Has this happened to anyone else?
Will this hurt my motor?
please help. It's driving me crazy.
02-28-2006, 08:11 AM
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No check engine ligtht? I doubt the synth oil has anything to do with this. How many miles on the car? How many miles since you went with LT's w/ emissions? How long since you changed the front O2's? I bet one of your front O2's is heading south. If you have had codes, have you tried swapping the front's L to R? More info.
02-28-2006, 11:32 AM
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ses code P0332 knock sensor bank 2 hi or low input or something like that.
84k on car now. it's been around 4 months with LT & ORy. i installed 2 new o2's when i installed the headers. i haven't tried swaping the o2's. i thought they were identical anyway.
i going to get the car tuned in the next month or so. i think i will have them look into for me. i just wanted to see if this was a common think or if anyone had a quick fix.
thanks for the replys
84k on car now. it's been around 4 months with LT & ORy. i installed 2 new o2's when i installed the headers. i haven't tried swaping the o2's. i thought they were identical anyway.
i going to get the car tuned in the next month or so. i think i will have them look into for me. i just wanted to see if this was a common think or if anyone had a quick fix.
thanks for the replys
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03-01-2006, 08:54 PM
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I was unable to uncover any Mobil oils with a 15w other than 15w-50. Either they mis-wrote 5w-30 or they mis-wrote 15w-50. I guess the former.
I can't see how an oil change would cause the problems you described no matter what oil was put into your car. If the mechanic HAD put in 15w-50 it wouldn't be likely to knock. 5w-30 is a normal oil for this car and the only noises it causes/allows are a little bit of piston slap for the first two minutes or less after startup.
I would think the mechanic screwed something up or something non-oil-related went bad.
$.02
I can't see how an oil change would cause the problems you described no matter what oil was put into your car. If the mechanic HAD put in 15w-50 it wouldn't be likely to knock. 5w-30 is a normal oil for this car and the only noises it causes/allows are a little bit of piston slap for the first two minutes or less after startup.
I would think the mechanic screwed something up or something non-oil-related went bad.
$.02
03-05-2006, 05:23 PM
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got the car fixed i changed the spark plugs yesterday. i put in some ngk t55-v power.
the check engine light has not been back on and the gas mileage has come back.
i guess what i'm hearing on cold start ups is piston slap.
thanks for all the help
the check engine light has not been back on and the gas mileage has come back.
i guess what i'm hearing on cold start ups is piston slap.
thanks for all the help
