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Engine light. 2007 pt cruiser convertible. Took it to my…

Customer Question
engine light Mechanic's Assistant:...

engine light

Mechanic's Assistant: Has your vehicle stalled? Has anyone run a diagnostic test to pull the trouble code?

Yes

Mechanic's Assistant: What is the model/year of your Chrysler?

2007 pt cruiser convertible

Mechanic's Assistant: Are you fixing your Convertible yourself? What have you tried so far?

Took it to my mechanic

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Its misfiring in cyclinder 1

Submitted: 2 months ago.Category: Chrysler
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Answered in 3 minutes by:
12/1/2017
Chrysler Mechanic: Eric, Automotive Repair Shop Manager replied 2 months ago
Eric
Eric, Automotive Repair Shop Manager
Category: Chrysler
Satisfied Customers: 33,444
Experience: 20+ years experience as automotive store manager and technician.
Verified

HI,

Ok, what is your question on the cylinder 1 misfire?

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Customer reply replied 2 months ago
we changed fuel injector on no 1 cylinder...its still coding 0301
Chrysler Mechanic: Eric, Automotive Repair Shop Manager replied 2 months ago

HI,

Ok, there are many causes of a cylinder 1 misfire

Fuel injector

spark plug fouled

coil boot damaged or oil in it

faulty coil

faulty signal from computer to coil

faulty signal from computer to injector

wiring short or open

burnt exhaust valve

dropped valve

sticking valve

worn piston rings

base timing off

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Customer reply replied 2 months ago
can we talk on phone plz
Chrysler Mechanic: Eric, Automotive Repair Shop Manager replied 2 months ago

HI,

I am not where I have cell service, just internet. I will open this back up to other experts so one that is able to call will do so

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Customer reply replied 2 months ago
i appreciate it
Chrysler Mechanic: Gabriel Grey, Auto Service Technician replied 2 months ago
Gabriel Grey
Gabriel Grey, Auto Service Technician
Category: Chrysler
Satisfied Customers: 407
Experience: Master Service Technician
Verified

Hello, I hope you are doing great. My name is***** would be happy to help out with this. Are you still wanting a phone call?

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Customer reply replied 2 months ago
still waiting for phone call
Customer reply replied 2 months ago
Gabriel lets just do it with text
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago
David Craig
David Craig, Auto Mechanic
Category: Chrysler
Satisfied Customers: 4,747
Experience: Owner/Mechanic at 3D Automotive
Verified

do you still need assistance?

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Customer reply replied 2 months ago
david..I have a 2007 pt cruiser...we have changed coil wires,spark plugs...fuel injector in number one cylinder also replaced...its coming up with codes for misfiring number 1 and also running lean...compression test was good in that cylinder
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

ok, what was the compression of all 4?

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Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

also. if you pull the #1 plug is it wet?

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Customer reply replied 2 months ago
my mechanic checked number 1 cylinder and another cylinder...not sure which one...he said it was 170 and 175...he pulled spark #1 the other day...I don't know ifn itb was wet
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

ok, he needs to do a continuity test of the wiring from the pcm to the coil and from the pcm to the injector. do you know if he check the injector for pulse?

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Customer reply replied 2 months ago
I think it was pulsing but I will check with him
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

ok

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Customer reply replied 2 months ago
what does the continuity test tell us?
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

if the wiring between the coil and PCM and the wiring between the injector and PCM is good.

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Customer reply replied 2 months ago
do you think it could be the computer module?
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

It could be, but I never condemn a component unless I know its bad. the wiring must be checked.

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Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

hows it going?

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Customer reply replied 2 months ago
david basically everything has been changed...wires,spark plugs,in #1 is new fuel injector..new coil pack..i was going to mention this...the airbag light and sound sensor would just off at random times even before all this other stuff happened...how much does it cost to get pcm tested and can i do that by myself?
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

you can send the pcm out for test/repair at n.p.c. automotive computers. phone # 1-***-***-****

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Customer reply replied 2 months ago
brought the car home...engine service light is flashing on and off...it has a code still on it and i will check it later but i think its number 1 is misfiring
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

flashing light would definitely be a misfire.

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Customer reply replied 2 months ago
its misfire on number 1 cylinder...i understand its not good to drive with service light flashing
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

not at all it will destroy the catalytic converter

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Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

hows it going?

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Customer reply replied 2 months ago
hi David...the engine light is still flashing and the code 0301 misfire cylinder 1...we have changed spark plugs,wires,fuel injector,coil pack...is there anything else you can think of besides pcm or a stuck or burnt valve? i have spent so much money on this car and im medically retired and on a fixed income...this car is really starting to piss me off...any suggestions would be really appreciated
Chrysler Mechanic: David Craig, Auto Mechanic replied 2 months ago

Im going to open this up to the other techs to chime in on.

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Customer reply replied 2 months ago
i really appreciate it...i do fundraisers and events with my therapy dog kodiak for special needs children and veterans...i dont charge anything for what we do and i depend on this car to get us there..if you google (kodiak therapy dog) you can see what we do...i have events to go to but because of this stupid car i cant get there...ty David
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David Craig
David Craig, Auto Mechanic
Category: Chrysler
Satisfied Customers: 4,747
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