1993 4Runner running on 3 cylinders...HELP
#1
Registered User
Thread Starter
Join Date: Sep 2009
Location: Vancouver, BC
Posts: 91
Likes: 0
Received 0 Likes
on
0 Posts
1993 4Runner running on 3 cylinders...HELP
Hey Guys,
I have a 1993 4runner 3.0 V6 Automatic that is currently only firing on cylinders 1, 2, and 5.
I bought the truck with this problem for next to nothing with hopes of fixing it -- the story I heard was that a high school mechanic shop replaced the motor and could never get it running right.
Here is what I've done so far:
-Compression test -- 140+ on all cylinders
-Made sure distributor timing was set properly
-Removed timing cover and made sure timing belt was set correctly
-checked each plug and made sure each was getting a spark
-used a screwdriver as a 'stethoscope' to listen if injectors are opening
-made sure all spark plug wires are routed correctly.
I'm starting to think it's something related to all the vacuum lines. Could the VSV vacuum lines cause a misfire if they're not routed properly?
I have a 1993 4runner 3.0 V6 Automatic that is currently only firing on cylinders 1, 2, and 5.
I bought the truck with this problem for next to nothing with hopes of fixing it -- the story I heard was that a high school mechanic shop replaced the motor and could never get it running right.
Here is what I've done so far:
-Compression test -- 140+ on all cylinders
-Made sure distributor timing was set properly
-Removed timing cover and made sure timing belt was set correctly
-checked each plug and made sure each was getting a spark
-used a screwdriver as a 'stethoscope' to listen if injectors are opening
-made sure all spark plug wires are routed correctly.
I'm starting to think it's something related to all the vacuum lines. Could the VSV vacuum lines cause a misfire if they're not routed properly?
Thread
Thread Starter
Forum
Replies
Last Post
Colington
86-95 Trucks & 4Runners
13
10-12-2015 05:41 PM