Check Engine Light
Oldsmobile Regency
Ford Expedition XLT
Ford F-150

'92 olds 98 regency High idle rough running no go when you step on the gas glowing red exhaust upon opening your hood after check engine light comes on where do you start?


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Your engine is running too lean, probably the result of either a vacuum leak or possibly a damaged EGR valve. You will damage the valves, pistons or who knows what if you don't take care of this problem immediately.