Hey Team:
My '93 FZJ80 randomly started having a consistent rough idle when in Gear (including Reverse). I'm interested in thoughts on what else I should investigate.
In park, I idle a little above 1K RPM and the engine runs smoothly. When I put her into gear, I kick down to about 700 RPM and experience a pretty significant rumble throughout the vehicle. When I take my foot off the brake (in forward or reverse) I get a choppy roll until I touch the gas. Once on the gas she runs smoothly until I get to my next stop when the rough idle and chop re-emerges.
Thus far I've checked the Idle Air Control Valve (getting the appropriate resistance readings), adjusted my TPS, and replaced a few of vacuum hoses that were starting to crack. If helpful, I also recently replaced the torque converter and trans oil pump, but I doubt those are related
Any other ideas on what I should investigate are much appreciated.
My '93 FZJ80 randomly started having a consistent rough idle when in Gear (including Reverse). I'm interested in thoughts on what else I should investigate.
In park, I idle a little above 1K RPM and the engine runs smoothly. When I put her into gear, I kick down to about 700 RPM and experience a pretty significant rumble throughout the vehicle. When I take my foot off the brake (in forward or reverse) I get a choppy roll until I touch the gas. Once on the gas she runs smoothly until I get to my next stop when the rough idle and chop re-emerges.
Thus far I've checked the Idle Air Control Valve (getting the appropriate resistance readings), adjusted my TPS, and replaced a few of vacuum hoses that were starting to crack. If helpful, I also recently replaced the torque converter and trans oil pump, but I doubt those are related
Any other ideas on what I should investigate are much appreciated.