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Question
dsc73
01 yukon xl 1/2 ton 4x4 97,000. Please help.
I have three issues.
1.) For the last couple months it starts normal when cold but after its warm it takes 5-8 seconds to start. It seems to run rich when it starts both warm and cold?
2.)Last week the oil pressure guage started running about 25% higher then normal? When you turn the vehicle off it never drops below 20, like the guage is exaggerated. So is the oil sender unit bad, is that the reason for the high oil pressure? I disconnected the cable to the sendor then my gauge pegged to the right. I disconneted the battery and the guage still stayed around 20.
3.) After a couple days of the higher oil pressure the check engine light came on I connected my code reader and it put up 2 of the same codes p0332, p0332. My Hayes says this is a is knock sensor circuit, low output (rear knock sensor)
Where should I start?.......Thanks for you guidance.
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