PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Misfire

Reply Subscribe

Search this Thread

Old

Jul 21, 2017 | 12:52 PM

#1

Thread Starter

Registered User

Joined: Jul 2017

Posts: 1

Likes: 0

Default

Misfire

2008 chevy impala ss 5.3L v8, misses after warming up, no code, lifters have just been replaced and valves reseated. New coils and plugs and wires all around. Large random spark between coil mounting plate on right bank and valve cover bolt. Same left bank but much smaller and less frequent. Any ideas?

Milo

Old

Jul 21, 2017 | 02:53 PM

#2

TECH Senior Member

Joined: Jun 2016

Posts: 22,301

Likes: 3,625

From: Central Cal.

Default

Check all your grounds.

Old

Jul 21, 2017 | 10:09 PM

#3

TECH Senior Member

iTrader: (39)

Joined: Apr 2007

Posts: 9,719

Likes: 999

From: Evansville,IN

Default

Quote:

Originally Posted by G Atsma

Check all your grounds.

Holy crap X2 on this.

The voltage is trying to get back to ground and it will...somehow.

Voltage is very lazy....but it is also very strong.

Old

Jul 21, 2017 | 10:17 PM

#4

TECH Senior Member

Joined: Jun 2016

Posts: 22,301

Likes: 3,625

From: Central Cal.

Default

Quote:

Originally Posted by LilJayV10

Holy crap X2 on this.

The voltage is trying to get back to ground and it will...somehow.

Voltage is very lazy....but it is also very strong.

Reply Subscribe

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 07:34 AM.