Cylinder 1 misfire

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May 5, 2019 | 11:50 AM

#11

Mr_Professional

Thread Starter

CF Beginner

Joined: Apr 2019

Posts: 6

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So we pulled the valve cover and a piece of the lower part of the timing system came out with it. Cranked one of the cams and it skipped time. I'm writing it up as a loss instead of trying to pull the engine and fix the timing as well as whatever else could have gone wrong as a result and will probably just find a different engine to put into it.

Last edited by Mr_Professional; May 5, 2019 at 11:54 AM.

Nov 7, 2021 | 11:57 AM

#12

chevyboy@22

CF Active Member

Joined: Sep 2020

Posts: 220

Likes: 10

From: Raleigh, North Carolina

Faulty spark plug in cylinder 1
No compression in cylinder 1
Damage or excessive wear of spark plug wires and/or coils
Damage or excessive wear of distributor cap (not applicable to all vehicles)
Damage or excessive wear of rotor button (not applicable to all vehicles)
Faulty fuel injector
Clogged EGR valves or tubes
Burned valves
Inaccurate ignition timing
Vacuum leaks
Low fuel (rare)
Leaking from head gasket
Cracked distributor cap
Faulty camshaft sensor
Faulty crankshaft sensor
Faulty mass air flow sensor
Faulty oxygen sensor
Faulty throttle position sensor
Faulty catalytic converter
Faulty powertrain control module

Apr 5, 2022 | 9:57 AM

#13

HHR guru

CF Junior Member

Joined: Apr 2022

Posts: 58

Likes: 4

Quote:

Originally Posted by Mr_Professional

So, I have a 2011 chevy hhr that I believe has a 2.4l engine. It has a massive misfire. I'm talking car jerking, and recently it will stall after about 30 seconds idling in park. I recently replaced the camshaft sensor after the CE light came one, and when that was done it flagged the intake and exhaust solenoids, so I replaced those, then it flagged knock sensor, so I replaced that as well. The problem has just gotten progressively worse. Currently I have replaced all that plus put in new OEM plugs, as well as a new ignition coil for that cylinder. I have swapped it with both another plug and ignition coil just to determine if they were faulty and it still pops up cylinder 1. I'm at my whits end with this. I've heard it could be a bad injector, blown head gasket, compression issue. What would be the next logical step in trying to determine what's wrong. I'm about ready to just shop the thing even though I dont want to because I'd rather spend 40-60 for a part and do it myself then to pay someone alot of money to do it for me.

if your hhr is equipped with vvt, have you had any of this work done, you may want to swap the solenoids in the top of the engine. They are not marked usually and that could be the result you're looking for. It may solve a misfire. Make sure you put what you took off back the way it was and try it

Last edited by HHR guru; Apr 5, 2022 at 10:00 AM.

Jun 4, 2022 | 4:04 AM

#14