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sprinkles08
sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 22802
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Oo my pt cruiser give 2 fault p0455, p0300, 2008, I check my

Customer Question

Hellooo my pt cruiser give 2 fault p0455, p0300
JA: What year is your Pt Cruiser?
Customer: 2008
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: I check my fuel pressure it is 60psi and i check my sparkplugs they are clean
JA: How many miles are on the car? Have you had the fuel pressure tested recently?
Customer: 109008
JA: Anything else you think the mechanic should know?
Customer: No
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chrysler Mechanic about your situation and then connect you two.
Submitted: 1 year ago.
Category: UK Car
Customer: replied 1 year ago.
Are you there
Customer: replied 1 year ago.
Hello
Expert:  Greg replied 1 year ago.

This is 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.

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


With a p0455, the most common issue to check :

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

If the vacuum leak from the P0455 is big then this could cause you the P0300 which is a multiple engine misfire .

so i would take care of the P0455 code first . in some cases you may hear a vacuum suction hiss when running the engine at idle

so check where the purge valve is for leaks ..

Still need additional information then please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.
Your deposit does not pay me until the answer is rated in a positive way,
A bad rating does not constitute a refund.
If you are not happy or you have sorted out your problem before the answer then please let me know with the reply button .
Kind regards Greg.

    Customer: replied 1 year ago.
    Hello Greg
    Customer: replied 1 year ago.
    When i'm driving the car it doesn't pick up
    Customer: replied 1 year ago.
    I didn't use this car for 4 mounts .4 mounts ago it was good good. And now it give this error
    Customer: replied 1 year ago.
    We find the leak it was a hose on the intakemanyfold
    Expert:  Greg replied 1 year ago.

    Good find now clear the codes by disconnecting the battery for a few minutes and press on the brake padel for a minute .

    Test drive recheck for codes .let me know what codes come back .

    You need to do a good 15 mile test drive, mix of highway ,city stop and go .

    Rgds Greg

    Customer: replied 1 year ago.
    Hi Greg the pt cruiser rpm when runner didnt reach more them 3000rpm
    Expert:  Greg replied 1 year ago.

    Has the check engine light come back ON when the engine is running .

    Greg

    Customer: replied 1 year ago.
    No the check engine light does not come on
    Expert:  Greg replied 1 year ago.

    Okay the code issue is resolved and no misfiring or vacuum leak ,

    But when driving what issue do you now have ? will not go over 3000 rpm ..

    When you get to 3000 rpm what happens .

    Greg

    Customer: replied 1 year ago.
    Ok . When it reach 3000rpm and the transmission has shift 2second speed. What you hear is a noise that come out the intake or air box .
    Expert:  Greg replied 1 year ago.

    Okay not sure what to do with this issue .

    Im going to reopen this for another expert to assist you with .

    rgds Greg

    Expert:  sprinkles08 replied 1 year ago.

    Hello and welcome to JustAnswer!

    Do you still need help?

    Customer: replied 1 year ago.
    sure
    Expert:  sprinkles08 replied 1 year ago.

    Does it accelerate normally to 3,000 RPM and then seem to hit a rev limiter?

    Customer: replied 1 year ago.
    when it is in park P. But when we are driving it doesnot pass 3000rpm. Im thinking that it can be the fuel pump.
    Expert:  sprinkles08 replied 1 year ago.
    While driving does it feel like you are hitting a rev limiter?
    Customer: replied 1 year ago.
    No . When it reach 3000rpm at 40mph the engine drops and you can hear a hard noise that coming out the airfilter. And you need to give minus gas to get the car riding
    Expert:  sprinkles08 replied 1 year ago.

    Is it a turbo?

    Customer: replied 1 year ago.
    No no turbo
    Expert:  sprinkles08 replied 1 year ago.

    Can you describe the noise in detail?

    Customer: replied 1 year ago.
    The noise its like when you take off the airfilter box
    Expert:  sprinkles08 replied 1 year ago.

    Just air noise from the throttle being open then?

    Customer: replied 1 year ago.
    A hard noise and the car is not going fast ,and didn't pickup
    Expert:  sprinkles08 replied 1 year ago.

    The symptoms you're describing are often caused by an exhaust restriction from a failed catalytic converter. If no fault codes are setting and fuel pressure is good at the time the problem is present then I would recommend having a backpressure test done to check for exhaust restriction.

    Customer: replied 1 year ago.
    I check the fuel pressure and it is 60psi
    How most i check this fuel pressure when the engine is started?
    The cylinder head have a erg vavle could this be a problem if this is no working???
    Customer: replied 1 year ago.
    Sorry but it most be EGR VALVE
    Expert:  sprinkles08 replied 1 year ago.
    The EGR valve won't cause what you're describing.Fuel pressure needs to be tested by connecting a fuel pressure gauge to the fuel rail.
    Customer: replied 1 year ago.
    My last question can you verify if this is posible, the pt cruiser is 2008 this model did not use a EGR valve but they change the cylinder head and this one have a EGR valve on the cylinder head. But this car has no EGR valve conections.can this be the problem that the car didnt pick up or advance? ???
    Expert:  sprinkles08 replied 1 year ago.

    The EGR valve should be removed and a blockoff plate installed, but if the EGR valve was leaking then it would cause the engine to run poorly at low speeds and stopped, the opposite of what you're describing.

    Customer: replied 1 year ago.
    Ok i understand. Today we change the fuelpump we clean all 4 injectors.
    But we have the same problem .
    And right now we a thinking on the EGR valve. Before the mechanic has change the
    Cylinderhead the car was overheating and they has change the cylinder head.
    And when they done the car never run perfect
    Expert:  sprinkles08 replied 1 year ago.

    If the problem started as a result of replacing the head then cam timing may be incorrect.

    As I mentioned earlier based on the symptoms I would recommend checking backpressure, in light of the new information if backpressure is ok then it would be a good idea to look at cam timing.