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James, Ford Technician
Category: Ford
Satisfied Customers: 3628
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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Poor heat to the rear of 2008 ford amblance
, front

Customer Question

Customer: ***** ***** , poor heat to the rear of 2008 ford amblance
JA: Thanks. Can you give me any more details about your issue?
Customer: front heater works fine . poor circulation to rear . valves are new
JA: OK got it. Last thing — JustAnswer charges a fee (generally around $28) to post your type of question to Ford Experts (you only pay if satisfied). There are a couple customers ahead of you. Are you willing to wait a bit?
Customer: there is no vac valve
JA: OK. Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Ford
Customer: replied 1 year ago.
has new water pump, flushed out all lines , no restrictions ,heat quit suddenly
Expert:  James replied 1 year ago.

Hello, was the heat not working before or after replacing these parts?

Customer: replied 1 year ago.
water pump replaced in may , thermostats in oct for other reasons . replace water pump now for this problem , but no change
Customer: replied 1 year ago.
replaced heater electric valves from lifeline because one was not working
Customer: replied 1 year ago.
thought water pump was getting weak
Customer: replied 1 year ago.
heater core is clear as all the lines are also
Expert:  James replied 1 year ago.

Does this vehicle use a boost pump? A lot of these I have seen use a boost pump to supply enough coolant to the heater itself.

Customer: replied 1 year ago.
no boost pump
Customer: replied 1 year ago.
boost pumps are used on newer ones to meet the 5 minute 70 degree deadline
Customer: replied 1 year ago.
we are going to pinch off the lines to the front heater core after lunch today to see if that forces the air out
Expert:  James replied 1 year ago.

Ok let me know if that works for you.

Customer: replied 1 year ago.
nothing changed
Customer: replied 1 year ago.
going to try replacing the hoses
Expert:  James replied 1 year ago.

It's possible the auxiliary heater core is restricted and needs to be flushed.

Customer: replied 1 year ago.
Checked that first
Expert:  James replied 1 year ago.

Bleeding the system must not have helped?

Customer: replied 1 year ago.
Had to add an inline lift pump to the system to get heat to the rear. Newer ambulances have these so the ambulance company suggested it and it took care it took care of it . Thanks
Expert:  James replied 1 year ago.

Great so a lift pump did fix it. If you feel I helped at all please rate my service so I receive credit for assisting you.