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Re: emission failure
what we found on this one is that it had a header on it that grouped the front three cylinders and the rear three cylinders then went into two then into one .i guess you could call it a tri y type of header with the o2 sensor in the rear set of tubes. the pcv... Login to read more. ![]()
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| Engine | 4.2 L |
| Trans | 5-speed Standard |
Vehicle Data
1984 Jeep CJ7 Renegade 4.2L
| Engine | 4.2 L |
| Trans | 5-speed Standard |

2 Replies Received
2 Replies Received