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@  intelon : (18 September 2014 - 05:24 PM) I'm currently having the same engine problem with my stratus, it makes the same noise but I haven't figured out where it's coming from. I've been done it's because one of the lifters is getting stuck or something
@  Koolguy007 : (18 September 2014 - 02:30 PM) I had to use the stock pistons with new rings due to financial constraints. Someone offered me an engine for 800 with a dead cylinder, and thats the cheapest I found. I had to work with what I had. The block was hardly wore and still in spec. It sounds louder from underneath just like the video, but mine started as soon as I started it. All journals were plasticgauged and were on the very tight end of tolerance, but not out of the listed spec. All new gaskets, bearings, rings, and oil pump was installed.
@  KennyL : (18 September 2014 - 06:54 AM) It all depends on where the noise is coming from. The video doesn't really sound like slap, but people also say it's a "neon typical" noise and is caused by the power steering pump, of all things.
@  KennyL : (18 September 2014 - 06:42 AM) Did you have the engine bored to straighten out bores and have it cut to the individual pistons? Therefore, insuring correct piston to wall clearance? If you just honed and used stock replacement pistons and new rings, you might be having more slap due to excessive piston/wall clearances.
@  KennyL : (18 September 2014 - 06:39 AM) Hrm, some comments mention piston slap, which isn't as major. If it were a main or rod bearing you'd know it pretty fast.
@  KennyL : (18 September 2014 - 06:37 AM) I thought it was a collapsed lifter/cam adjuster causing the pecking noise at first, but that's a lot louder under the car...not a good sign for the engine in the video. Can you tell exactly where yours is coming from?
@  Koolguy007 : (17 September 2014 - 07:28 PM) Just rebuilt the engine in a Neon and now I have this exact sound but worse. Has someone encountered this?

Photo

P0455 - Evap Emission System Leak Detected (gross leak/no flow)


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8 replies to this topic

#1 SLeagle328

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Posted 11 September 2009 - 06:54 PM

So what is it?

Did I do some additional damage to my a/c system?

Thanks.

Freeze Frame Data from my scanner:
Fuel Sys 1: CL
Fuel Sys 2: NA
Calc Load(%): 5.88
ECT(deg C): 73
MAP(kPa): 29.00
Engine RPM:1280
Veh Spd(km/h): 56

P.S: I already googled the code, so I'm looking for more than just the basics... does this have anything to do w/ the A/C system? Is it possible that with the heat generated from snapping the drive belt over the seized a/c clutch something else broke?

Edited by SLeagle328, 11 September 2009 - 07:10 PM.


#2 jbuff

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Posted 11 September 2009 - 06:59 PM

This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

Causes: A code p0455 most likely means one or more of the following has happened:

•A loose or improperly affixed gas cap
•A non-conforming gas cap (i.e. not factory/original brand)
•Other leak or damaged piece in EVAP system

Possible Solutions: With a p0455, the most common repair is to:

•Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
•Otherwise, replace the gas cap, and/or
•Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary



jess :lol:

#3 SLeagle328

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Posted 11 September 2009 - 07:02 PM

Thank you Jess.

I already saw that...

Rather than just the definition of the code, I was more looking for an educated guess based on what just happened to the car's a/c system...

#4 jbuff

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Posted 11 September 2009 - 07:09 PM

how well is the car running?

jess

#5 SLeagle328

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Posted 11 September 2009 - 07:12 PM

how well is the car running?

jess



Car is running fine, although the CEL just appeared a few mins ago. A/C Clutch seized about two weeks ago. I was driving it for maybe a total of 10 miles while the light was on.

#6 SLeagle328

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Posted 12 September 2009 - 04:59 PM

So looks like it was the gas cap, it was never screwed down... I put it back on and cleared the code.

I was worried that when the belt snapped it hit a hose or broke something under the hood, but maybe not.

Thanks!

#7 captainkirk

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Posted 12 September 2009 - 06:28 PM

That's great, glad to hear it was nothing bad and/or expensive.

#8 jbuff

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Posted 13 September 2009 - 08:53 PM

Thank you Jess.

I already saw that...

Rather than just the definition of the code, I was more looking for an educated guess based on what just happened to the car's a/c system...

<_< :P lol at least its fixed...


jess

#9 MRxEMERICA690

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Posted 14 September 2009 - 10:35 PM

I hate this code. i had this code so many times thats its not funny. here was my fix. the EGR tube that goes into the upper intake manifold was loose. there was a leak. if you have the car running and run your finger around there and you feel a little bit of suction. there it is. at school i did the smog test and thats how i found it. there are many ways. but dont replace parts when you dont need them. hope this kind of helps. hahaha. nothing to do with the Air Conditioning system. its an emission problem.

man i feel stupid. maybe i should read all the posts like 5 times before replying. i didnt even read that it was fixed. lol. WOOOOSH right over the head.