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Howdy All --
So, my beloved 240 4-door experienced a sudden drop in MPG after its last smog test (went from 18mpg to 5mpg).
After trying suggestions from the Brickboard, I gave up and paid $95 to a Volvo specialist for a diagnostic workup.
His comments:
(A) Bad Air Mass Meter = explains low mileage. (Seemed reasonable to me)
(B) Head Gasket problem, letting coolant into cylinder #2, which is why car idles rough on morning startup.
For this he wanted to charge me $550 to replace the AMM, and $1050 to replace the head gasket.
Now, seems to me that I could get an AMM new online for ~$230, and install myself fairly easily. Not sure about the head gasket.
So, all, thoughts on whether y'all believe the diagnosis... and if so, what's a great source for an inexpensive AMM on line?
thx
- K
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