Oil in Spark Plug Tubes May Cause Misfire on Isuzu Rodeo

On the V-6 engine, oil in the spark plug tubes can cause a misfire. Resealing the tubes as part of replacement of the valve cover gasket and replacing the spark plug wires will commonly repair this issue. On newer models the misfire can result in illumination of the Check Engine Light.

RepairPal Verified
Average mileage: 151,097 (85,000–199,688)
Engines affected: 2.2L 4 Cylinder, 2.6L 4 Cylinder, 3.2L V6
9 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2001, 2003, 2004
22 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
Viewing 1 - 7 of 7 problem details
1997 Isuzu Rodeo - 3.2L V6 123,000 mi,
Oil leaked into spark plug holes and shorted out the coil wires and cause a misfire in the right bank. This also caused the cat's to go bad and the 02 sensors had to be replaced!
1997 Isuzu Rodeo - 3.2L V6 158,015 mi,
My check engine light came on, so i took it to Auto Zone. They ran a diagnostic and said it was the 6th cylinder misfire. So my husband and father in law took the spark plug out and there was oil on it.
1997 Isuzu Rodeo - 3.2L V6 199,688 mi,
started skipping, then check engine light came on. Had advance auto run computer on it and the reading said it was a misfire in the cylinder 6
1997 Isuzu Rodeo - 3.2L V6 186,471 mi,
oil in spark plugs
1996 Isuzu Rodeo - 3.2L V6 159,000 mi,
Check engine light illuminated. Code P0305, misfire on cylinder 5 detected. Check engine light cleared at next start up. No noticeable performance issues.
1999 Isuzu Rodeo - 3.2L V6 179,110 mi,
I was checking the plugs & one of them was full of prestone
Spark plug tube failed, oil got in and caused misfire. Replaced tube and plug, back on the road next day.