My 94 88 / 3800 (127k miles) has started to stall and surge when starting on
cold mornings and check engine light comes on. Low coolant light also has
been coming on occasionally during driving, but not at morning startup. Took
it to a repair shop, told them my story and they checked it out. Said crank
position and low coolant codes came up and that coolant is leaking into
intake and on some sensor below throttle body causing the codes. They say it
needs a new throttle body / intake kit to the tune of $250 plus $250 labor.
All fluids levels are ok and clean, idles fine and plenty of power when
warm. Haven't pulled the plugs but I just don't agree with this diagnosis
and mechanic will not guarantee this $500 fix will cure problem.I thought it
was an O2 sensor, but they say no. Any ideas?