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brilliantly1 · Mar 22, 2013, 12:45 PM

Hi All,

I have a 2003 Lincoln Navigator that is losinf compression. The dealership advised me that #7 dropped compression and #'s 3, 1 & 2 are beginning to drop compression. They advised me that the repair for 1 cylinder head is $2875. Is there anything else I can do besides pay nearly $4k for an engine and labor??

Thanks,

Andrea

smoothy · Mar 22, 2013, 12:51 PM

I assume that's a 7.3 power stroke?

If it is... has it been checked for cavitation damage? You'd also likely have coolant loss as well if it is.

I'd recomment getting a second opinion since you are talking that much money... If that's not a diesel... you could get a remanufactured engine for not a lot more than that.

brilliantly1 · Mar 22, 2013, 01:18 PM

I have no idea whether it's a 7.3 power stroke. I don't believe it has been checked for cavitation damage. However, it doesn't appear to be leaking coolant. I priced a remanufactured engine for $2k but would need someone to put it in. Lincoln of course said they would for $3k... that will not be happening. The truck has 118,000 miles and is not a diesel.

ma0641 · Mar 22, 2013, 02:09 PM

Don't think it is a power stroke, that's a Diesel and not sure Navigator had a diesel. Is the vehicle having issues? What prompted the cylinder test? What was the compression #s. Could be a valve or head gasket.

TxGreaseMonkey · Mar 22, 2013, 02:14 PM

It's likely a 2WD 5.4L SFI DOHC 8cyl. I've worked on this engine and I suspect a blown head gasket. Did the engine ever overheat? This is a quality, time-tested engine, which can easily go 300,000 miles. I would get it repaired. Shop for price and warranty with other Ford dealerships in the area, if you want. IMO, they quoted you a fair price to replace the head gasket, machine the head, repair any valve damage, and replace the valve guides and valve seals.

brilliantly1 · Mar 22, 2013, 02:47 PM

No, the engine never overheated. The truck sputters when you try to drive it and it shakes a lot. I thought it was just fuel injectors because the car wouldn't accelerate. It took me minutes to get the car from 0 - 40.

smoothy · Mar 22, 2013, 03:00 PM

Originally Posted by ma0641

Don't think it is a power stroke, that's a Diesel and not sure Navigator had a diesel. Is the vehicle having issues? What prompted the cylinder test? What was the compression #s. Could be a valve or head gasket.

It was an option.. and an expensive one ( I know someone that has a diesel Navigator)... they would know it if they had it. They would have to put diesel in it.

And I see they didn't have that.