when warmed up and in motion the enginge lags. it does not overheat and does not turn off. I checked oil pressure from engine and looked if it was burning through but it was ok. Havent changed the distrbutor cables nor spartplugs. Trnsmission oil is fine no leaks from either both.checked the fusebox and no need to change any. Checked the cooling system and found that the top hose has almost no pressure but runs enough through to cool the engine. it runs slow and is wasting more gas. Doesnt make gear changes. I asked two mechanics non pro with no accurate result. And over going more than what my gut tells me. I was recomended to this site to be trustworthy and get a better answer. Please help. what could be the cause of my engine to lag.
My car has 220000 miles.
My car has an automatic transmission.
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