Q: I never thought I’d be writing you with an issue – but here I go. I own a 2011 Suburban. The check engine light has been on for more than 3 years. The issue (code) identifies it as an “oil pressure sensor” fault. I can clear the code, turning off the check engine light, only to have it come back on the next day. Two years ago, when my emissions test was due, it cost me a small fortune and five trips back and forth to the mechanic to get the check engine light off long enough for me to successfully pass the emissions test. Fast forward to today. My emissions test is due again and I don’t have it in me to jump through the hoops. Any suggestions to get through the emissions test?
R.P., Hawthorn Woods, Illinois
A: You will continue to behave like a trained terrier unless you replace the oil pressure (OP) switch. The bad news is, because of its location, it is not a simple job, probably costing several hundred bucks. But it will be done once and for all. Replacing the switch is probably less painful than doing dumb dog tricks.
