multiple misfire p0300
Rookie
Joined: Feb 2010
Posts: 87
Likes: 1
From: Lynnwood, WA
well since the summer months truck has run great no "check engine " light exceptfor the other morning 1st start up it was 55 outside , check engine light flashed then went off an stayed off and ran fine , why would it just be troublesome in cooler weather ?
warm weather, it's good to go!
Record Breaker
Joined: Dec 2010
Posts: 1,191
Likes: 1
From: Nova Scotia, CANADA
Mine would rarely come on before, id get the light flashing and a slight loss of power for a minute, then would go away from months, summer or winter, not its constant. Low power, Light flashes everytime it starts and runs for a minute, noticeable miss-fire, Light will stop flashing if restarted once or twice, then just have a check engine light for P0300 and still a low power and noticeable miss-fire.
Anyone check to see if the battery is going bad? I know they cause problems. I plan to when I get back. Im out of town in another province for work next week.
Anyone check to see if the battery is going bad? I know they cause problems. I plan to when I get back. Im out of town in another province for work next week.
Record Breaker
Joined: Dec 2010
Posts: 1,191
Likes: 1
From: Nova Scotia, CANADA
Well had it to the shop for 3 days when I was in another province for work, They still didnt find anything. The only thing they can think of is the Left Side Cat, As it seems the misfires are on the left bank more often. However they say the Cat passes their tests for back pressure and heat.
Ive just got a odd feeling its something simple like the battery.
It only seems to have a noticible misfire and lack of power, when running for the first 5-10 minutes, and after sitting all night, or on colder days. On hot days it sometimes doesnt happen, but it also has some power-lacking.
Ive just got a odd feeling its something simple like the battery.
It only seems to have a noticible misfire and lack of power, when running for the first 5-10 minutes, and after sitting all night, or on colder days. On hot days it sometimes doesnt happen, but it also has some power-lacking.
Registered User
Joined: Jul 2022
Posts: 7
Likes: 0
Well had it to the shop for 3 days when I was in another province for work, They still didnt find anything. The only thing they can think of is the Left Side Cat, As it seems the misfires are on the left bank more often. However they say the Cat passes their tests for back pressure and heat.
Ive just got a odd feeling its something simple like the battery.
It only seems to have a noticible misfire and lack of power, when running for the first 5-10 minutes, and after sitting all night, or on colder days. On hot days it sometimes doesnt happen, but it also has some power-lacking.
Ive just got a odd feeling its something simple like the battery.
It only seems to have a noticible misfire and lack of power, when running for the first 5-10 minutes, and after sitting all night, or on colder days. On hot days it sometimes doesnt happen, but it also has some power-lacking.
what was the fix?