Another misfire post
03-17-2015, 08:12 PM
#21
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well I broke down and took it to the dealer, bad news, they say coolant in #1 cyl. Pressure test cooling system and it loses pressure and cyl 1 gets wet. Head gasket or head, with my luck it's a cracked head.
03-30-2015, 06:41 PM
#24
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UPDATE: I should've mentioned that I took it back to my local guy, he was much cheaper than the dealer. I went out of town for the weekend so I checked on it today. He told me that what the dealer told me sounded fishy to him so he pressurized the cooling system and it didn't lose pressure over night, he also pulled the intake and spark plug and did not find any coolant in the cylinder at all. So he thinks the dealer didn't even look at it. He put it back on the scope and he can see the ignition signal for #1 is erratic so he's thinking PCM since we've replaced everything else. He ordered one and told me if it didn't work I didn't owe him anything but if it did I just owed for the part and time. It's supposed to come in tomorrow so we'll see what happens. He also told me if it doesn't work he's done, doesn't know what else to do and he doesn't want to pull the head.
03-30-2015, 06:51 PM
#25
JK Jedi Master
UPDATE: I should've mentioned that I took it back to my local guy, he was much cheaper than the dealer. I went out of town for the weekend so I checked on it today. He told me that what the dealer told me sounded fishy to him so he pressurized the cooling system and it didn't lose pressure over night, he also pulled the intake and spark plug and did not find any coolant in the cylinder at all. So he thinks the dealer didn't even look at it. He put it back on the scope and he can see the ignition signal for #1 is erratic so he's thinking PCM since we've replaced everything else. He ordered one and told me if it didn't work I didn't owe him anything but if it did I just owed for the part and time. It's supposed to come in tomorrow so we'll see what happens. He also told me if it doesn't work he's done, doesn't know what else to do and he doesn't want to pull the head.
03-31-2015, 07:18 AM
#28
JK Jedi Master
03-31-2015, 08:07 AM
#30
JK Jedi Master
Is it still true that it misses after start up, and straightens out in a few minutes? If so, keep eliminating items off the list of possible causes. It won't hurt to drive it, since it spends more time running well than running with a misfire.
Concentrate on those items that may be engine temperature sensitive.