Patient is a 2006 Ford Fusion 3.0L
I am working on it for someone from my church who is low on funds with no technical knowledge.
SImply stated when it is cold out, it will crank but not start...if I hold the throttle about half way down it will sputter to life, then idle perfectly. The battery is strong and healthy.
Once started, it runs perfectly...good gas mileage, etc.
I replaced the MAF, as when I unplugged it it seemed to start fine. This did not solve the problem.
There are no codes stored or pending.
When I key-on with cold engine, the intake air temp and the coolant temperature are within a degree or two (I figured it was a coolant sensor).
I find this is a VERY common problem, and the resolutions online seem to be either a MAF, or requires a trip to the dealer to get updated ECM software. I cannot find any TSB's to support the claims I see online for it needing a software update.
So...questions:
Is anybody familiar with the claimed TSB for cold-start issue? Success with it?
Any other ideas on what to check?
I am working on it for someone from my church who is low on funds with no technical knowledge.
SImply stated when it is cold out, it will crank but not start...if I hold the throttle about half way down it will sputter to life, then idle perfectly. The battery is strong and healthy.
Once started, it runs perfectly...good gas mileage, etc.
I replaced the MAF, as when I unplugged it it seemed to start fine. This did not solve the problem.
There are no codes stored or pending.
When I key-on with cold engine, the intake air temp and the coolant temperature are within a degree or two (I figured it was a coolant sensor).
I find this is a VERY common problem, and the resolutions online seem to be either a MAF, or requires a trip to the dealer to get updated ECM software. I cannot find any TSB's to support the claims I see online for it needing a software update.
So...questions:
Is anybody familiar with the claimed TSB for cold-start issue? Success with it?
Any other ideas on what to check?
