Hi,
I’m in desperate need for some net handyman’s advice about my car.
I have an 1986 Ford Tempo with 2.3L gas engine, fuel injected. It
performed pretty well over the years. Recently I’ve started having problem
with the engine warning light. I know it’s something related to either
high temp. or low oil pressure. The temp. should not be the cause since
there is no leak in the cooling system and the following description will
also explain this:
It all started one day after I got off highway and entered city zone
with speed limit of 40, the engine red light started to glow when I kept
driving under 40. If I speed up above 50, the red light goes away. Since
then (about 2 months ago), the car runs ok in city without A/C on, but
if the A/C is on, it takes only about 5 mins. for the red light to show up.
On the highway the engine is ok driving above 60 no matter the A/C is on or
not. So, the only problem looks to me is that when the engine is highly
loaded, the red light comes up if the car is running at low speed (below 40)
and no red light at higher speed (50 – 65).
My guess is the something in the oil pressure system, maybe some valve
or sensor is malfuntioning, but I don’t know which one. If any netter out
there has same experience or knows about this symptom, please share it with
me. Your help is highly appreciated.
You can post here or email me. Thanks in advance.
Alan
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