2006 4.6 gt timing issue.

S1mustang

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I'll start from the top. A few weeks ago right when it got really cold I started up my car and noticed it shaking on start up. It lagged a little but eventually acted fine. I get off work and noticed some codes, it was the crankshaft sensor on bank 1 and my bank 1 02 sensor. Replaced both and the car ran better than it ever did since I've owned it the past 3 years on the way to work. I get off work and notice the shake again, maybe a little worse. Get home and it threw p0012, p0016, p0303, and p0316. So bank 1 is over retarded and number 3 cylinder has a misfire is what I got out of that. I just now replaced the vvt solenoid on that 1 side and put the car on a stock tune (none of my bolt ons require a tune) and it does the same thing. I'm currently getting p0012, p0016.
 

RED09GT

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Could be a tensioner or chain guide issue. I'd pull the cam covers and shine a light down to see if you can spot anything that might be broken.
 

S1mustang

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I found some white plastic bits wedged near the vvt solenoid.. I'm guessing that would be the chain guides. I'm torn between replacing the engine or doing a timing kit/aftermarket cams. The engine has 189k on it, not abused at all and very well maintained. I'm thinking engine would be the way to go if I was to keep it. Having a hard time pricing one.
 

RED09GT

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This really depends on your budget. That is a fair number of miles but if you were to replace lash adjusters, roller followers, and valve springs along with the after market cams and the rest of the timing set-you likely could get another 80,000 miles of it still running strong if you stay N/A.
If you want to go boost within the next couple of years, build the bottom end using the stock block.
 

Dino Dino Bambino

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I found some white plastic bits wedged near the vvt solenoid.. I'm guessing that would be the chain guides. I'm torn between replacing the engine or doing a timing kit/aftermarket cams. The engine has 189k on it, not abused at all and very well maintained. I'm thinking engine would be the way to go if I was to keep it. Having a hard time pricing one.

You've done very well to get to that mileage without ever cracking the engine open. I'd suggest that this is the time to pull the trigger and replace the following components starting from the bottom up:

1. Rod bearings & front/rear crankshaft main seals.
2. New 13-14 GT500 Oil pump DR3Z6600A & new 3V pick up tube 4R3Z6622AA.
3. Camshaft drive kit M-6004-463V.
4. Cam follower/lash adjuster kit M-6529-3V.
5. Valve stem oil seals.

This would be the minimum required to get the engine running reliably for another 100k miles.
At this point it would be a good idea to upgrade the valve springs and you could even consider upgrading the camshafts.
If your engine's consuming oil you'll probably need to replace the piston rings and have the cylinders rehoned in which case, the engine would have to come out. While the heads are off, they can be refreshed and you could use the opportunity to have them ported. You could even upgrade to forged rods/pistons and open up the possibility of adding forced induction down the road.
Plenty of food for thought there but I'd suggest you keep the devil you know and upgrade it rather than buy another engine with an unknown history that may also need rebuilding to be reliable.
 

S1mustang

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You all are right. I don't have the means to pull the engine and just moved to the chattanooga area of tn. I gotta find me someone who does good work. To have it rebuilt with minimal upgrades what do you guys think it would cost roughly?
 

Dino Dino Bambino

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Parts will cost you roughly $1500, labor maybe $1000. Adding another 20% for extras will bring the budget to about three grand. That's still less than what you'd pay for a used 3V engine so you'd certainly be better off.
Doing cams & valve springs would add about another $1500 so if you hardly ever rev the engine past 5000rpm, don't bother.
 

S1mustang

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That's a lot cheaper than I would have thought o.0. I'll go price it out Monday. Let you guys know what I come up with. Supposedly there's a ford man down the road from me that can do this.
 
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Parts will cost you roughly $1500, labor maybe $1000. Adding another 20% for extras will bring the budget to about three grand. That's still less than what you'd pay for a used 3V engine so you'd certainly be better off.
Doing cams & valve springs would add about another $1500 so if you hardly ever rev the engine past 5000rpm, don't bother.

Wait, so 3v used engines are $3k+? I’ve seen a few around me for a lot less, but they’re all high mileage. Just asking because I’m gathering parts for a coyote swap currently, and I have an 08 with 62k miles on it and I am trying to get a value on it after I pull it. I’ll probably drive it another year with the 3v, but I won’t put more than 3-4K more additional miles on it.
 

whitmanink

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Wait, so 3v used engines are $3k+? I’ve seen a few around me for a lot less, but they’re all high mileage. Just asking because I’m gathering parts for a coyote swap currently, and I have an 08 with 62k miles on it and I am trying to get a value on it after I pull it. I’ll probably drive it another year with the 3v, but I won’t put more than 3-4K more additional miles on it.


well remmeber what i tell my buddys,,
that mustangs , Cameros , chargers ect ect are all beat on most of the time, soo that being said, do you really think a 150,000+ miles engine is going to be usable? proly not, gonna have some wear , and who knows what else.. anything over 140,000 miles is a question ,, because everything at that point must be changed ,, (timing , roller follwers , head gaskets ,ect ect,)

so now you buy a $2000 engine , only to find out its worn and needs machine work to make it reliable again .. and down the rabbit hole we go lol ,,
 

whitmanink

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unless you are like me and go rebuild the motor and do all the work yourself,, ,minus machine shop work,,than a high miles motor is what you want cuz you would be ripping it apart the moment it arrives ,and money adding up isnt the issue
 

S1mustang

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I agree with not getting a used motor. Either I get a new crate or I rebuild it. I'm working with about 4 grand. Probably not getting a crate for that. I may be better off trying to do it myself. So torn, happened at the wrong time. I guess there's never a right time either.
 

S1mustang

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Found an engine builder in my area that will work with me. I'm dropping it off today and see what he suggests. I'll update you guys.
 

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