P0340 code....engine wont crank
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
P0340 code....engine wont crank
Getting an error when using the search feature.
Headed back home and less than a mile from the house I am @70% throttle, 3rd gear, around 75mph and POP! I could hear the "pop" clearly from under the hood so I coast up the hill into a turning lane and the car dies totally.
Pop the hood and check for a hole in block, leaking fluids, etc. Nothing to be seen out of whack or loose. Hop in the car again and it will turn over but wont start. Get her back in the garage after an exhausting push through the neighborhood.
OBDII reader shows a P0340 code.
Camshaft Position Sensor Circuit Malfunction
Attempt to start car while in garage and same thing. Turns over but wont crank.
Thoughts and/or experiences out there?
Finding it very odd or unlikely why the cam sensor would take a dump so suddenly.
Car information:
H/C LS2
@27k miles
Thanks.
Headed back home and less than a mile from the house I am @70% throttle, 3rd gear, around 75mph and POP! I could hear the "pop" clearly from under the hood so I coast up the hill into a turning lane and the car dies totally.
Pop the hood and check for a hole in block, leaking fluids, etc. Nothing to be seen out of whack or loose. Hop in the car again and it will turn over but wont start. Get her back in the garage after an exhausting push through the neighborhood.
OBDII reader shows a P0340 code.
Camshaft Position Sensor Circuit Malfunction
Attempt to start car while in garage and same thing. Turns over but wont crank.
Thoughts and/or experiences out there?
Finding it very odd or unlikely why the cam sensor would take a dump so suddenly.
Car information:
H/C LS2
@27k miles
Thanks.
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
I have the car all apart but not sure how to remove the UD pulley. It seems to be a solid center piece unlike the pics of others I have seen where I could us a puller tool.
Any thoughts on this?
I didnt hear the slightest difference in noise when I attempted to start the car. Yeah, I am just alittle worried.
Any thoughts on this?
I didnt hear the slightest difference in noise when I attempted to start the car. Yeah, I am just alittle worried.
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
Just did a google search and looks like I may have a SLP UD pulley. This is simply comparing pictures. Based on their site looks like the puller threads are close to the rim of the inside of the pulley.
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Instructor
Joined: Jun 2006
Posts: 172
Likes: 0
From: Seattle WA
I had this same thing happen to me day after thanksgiving. I'm still putting the engine back together. 1.8t had his about two weeks after mine. Wow, three timing chains in 3 months on the forum...
Instructor
Joined: Jun 2006
Posts: 172
Likes: 0
From: Seattle WA
I went for the Katech C5-R IWIS chain, 1.8t went with the Cloyes. Time will tell if there is another failure. Even if one of ours breaks, you'll never know for sure if it's the chain or some other issue in the valve train.
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
Valve spring coilbind is a major contributor ,along with worn out springs causing valve float!!
with the high lift and wild ramp speed cams running in these motors it is advisable to replace them,
I have no idea how often, but I'm sure there is someone out there that can chime in.
with the high lift and wild ramp speed cams running in these motors it is advisable to replace them,
I have no idea how often, but I'm sure there is someone out there that can chime in.
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
Drifting
Joined: Feb 2007
Posts: 1,844
Likes: 12
From: Alpharetta Georgia
.Leavinu, this sucks man and I hope it isn't the timing chain. You can find out if it is really easily. Take off your intake manifold and remove the valley cover. You will be able to see the upper portion of the cam gear. If there is no chain on it, your F'ed
. As for your balancer. Go rent a harmonic puller from Advanced. It will come with some long bolts that you can use to thread into the the outer rim of the pulley which will allow you to pull it off. My ASP underdrive pulley was just like you described.
Drifting
Joined: Feb 2007
Posts: 1,844
Likes: 12
From: Alpharetta Georgia
After that pop, you should have heard a loud rattling noise as the pistons hit valves. Did you hear that? Whatever you do, do not crank the engine over anymore until you figure out if it is the TC or not. I have spent the last 2 months getting my car back on the road after a TC failure and it is such a crap shoot because no one will give you an exact answer as to the cause or the solution.
Drifting
Joined: Feb 2007
Posts: 1,844
Likes: 12
From: Alpharetta Georgia
BTW, I just wanted to give you an update. My comp 921 springs were pressure tested and all came back right within spec. Looks like I had purely a TC failure. Everything about my install and components was flawless/in perfect working order.
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
