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Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Mercury Technician
Category: Mercury
Satisfied Customers: 1957
Experience:  16 years experience with Mercury
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1999 merc. cougar code PO453 evap. psi sensor switch input.

Customer Question

1999 merc. cougar code PO453 evap.hi psi sensor switch hi input. new gas cap new fuel pump(it quit) need sensor location.
JA: Are you certain it's the fuel pressure sensor that's in need of attention? What about the fuel rail? Have you checked it yet?
Customer: no. also when i turn on key almost to start i hear a click & pump run up.
JA: Are you fixing your Cougar yourself? What have you tried so far?
Customer: yes. using a summit $200 scanner & 1 problem at a time. been building track day cars(carb type) 1972.
JA: Anything else you want the mechanic to know before I connect you?
Customer: also code po117 temp sensor,on order.
Submitted: 9 months ago.
Category: Mercury
Expert:  Eric replied 9 months ago.


2L or 2.5L engine?

Customer: replied 9 months ago.
Customer: replied 9 months ago.
lets stop right now it starts at $5 then keeps going up&up. the temp sensor is $13 the purge valve is $32. please reverse the charge.
Customer: replied 9 months ago.
dont call.fuel psi has not a thing to do with purge v. take me off this account.