Working on my sons 06 LBZ. It has a coolant leak where the oil cooler elbow meets the block. He took it apart and somehow got the whol assembly out but now we can’t get it back in. The elbow on the back of the oil cooler hits what I believe is called the midplate before the holes line up on the block for the two o ringed oil passages. I don’t see how this happended as it was in there but I have tried everything. If I take the elbow off , the oil cooler goes right in. It almost seems as if I have to grind out the midplate to give it clearance but it came apart. We have been trying for 4 hours and cant get it back in, we tried leaving the bolts loose on the elbow. It almost seems to me like the transmission will have to come out and that midplate be loosened then the oil cooler installed while thats loose ?.
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Oil cooler leak
- Thread starter Godsmack
- Start date
MrMarty51
Well-Known Member
Did You get it figured out how to get that oil cooler stuffed back into the hole ?
BigDogYJ
Well-Known Member
Banks had some instructions written for their l5p cooler upgrade. I just did this on an lbz in a 91 square body suburban. It’s a tight fit but it works. Does yours have studs on the bell housing side? Or is it bolts? Ours had studs so it was helpful to get the elbow up and very loosely held up by putting the nuts on the studs. Then work the cooler in and get the bolts in for the cooler side. my friends skinny fingers were helpful.
Here's the banks instructions.. not sure how helpful they'll be. but I did reference them on an off while doing this job.
official.bankspower.com
Here's the banks instructions.. not sure how helpful they'll be. but I did reference them on an off while doing this job.
97708 Duramax Oil Cooler Upgrade Kit Owners Manual
https://player.vimeo.com/video/493545268 General Assembly NOTES: Sensor adapter and removable 1/8" NPT sensor plug is pre-installed. Remove plug and
official.bankspower.com