Question about 2003 Lincoln Navigator
Already replaced all 8 coil packs and a top hose keeps blowing off when going on expressway. car is still hesitating but running. was told the converter might be bad. problem is there are 4? Was told more than likely it was on drivers side.
You have 4 oxygen sensors,1 at each exhaust manifold and 1 after each catalytic converters.Usually a scan tool won't pin point which sensor is bad.It can get real expensive just replacing parts.The easy and cheapest way to find out is take to dealer for oil change and they will scan it for free and tell you what is wrong and the cost,you have option,to let them repair or fix yourself,now you know what is wrong,I take my Truck to dealer for oil changes to get free scan.
Posted on Jan 17, 2013
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Posted on Jan 02, 2017
There is a relay switch in each door. It is the relay in one of the the driver side doors. The switch is going bad.
Posted on Dec 29, 2008
Replace the coil pack once more. I went through 2 new ones on my f150 on one cylinder. One worked, the other didn't (both new off the shelf). Condensation build up in the boot caused mine to misfire. Anytime you replace a coil pack, squirt a little silicone grease inside. This will prevent condensation from hitting your plug. Fords are notorius for this problem, especially if you live in a humid area. Also, make sure and clear the codes after you make the repair.
Posted on Jun 10, 2009
Start with replacing all the spark plugs. Then drive. If it happens again it's your coils. Don't buy them used, and it's honestly better to buy them online from a website like partstrain.com or ebay.com. Dealership wanted 119.00 a piece, plus labor. I got them online, all 8 for a little under 450 after shipping. And it takes about an hour to do it yourself. All I can say is be gentle when getting the coils/plugs out.
Posted on Aug 08, 2009
I have the same problem exactly,took it to repair shops replaced coils,egr, egr sensor, timing chains, plugs still no solution,my cylinder misfire is on #3
Posted on Mar 05, 2010
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