Mishimoto Radiator and Hose Install in 8th Gen Civic
Approx. install time: About an hour
- 10mm socket 3/8 or 1/4 Drive
- 3/8 or 1/4 drive ratchet
- A flat head screwdriver
- Metric allen keys
- Pliers – i used needle nose
Let’s start by removing the black plastic shroud pictured below. pop the clips out with the flat head screwdriver.. circled in yellow
ok, Now slide the shroud forward now clearing the hood latch mechanism. We’ve circled are the 10mm bolts that you need to remove for the upper support to come out. the arrows are for 10mm bolts that aren’t visible in the picture. the 2 lower arrows are for 10mm long bolts that hold the ac condenser in place that is under the grille brackets. use the correct allen key on the grille brackets.
Next, unplug the hood latch wiring from behind the crossmember and slide plug off holder. then set the hood latch mechanism aside for the moment. theres clips holding part of the wiring harness to the upper cross member.. i used a combination of the needle nose pliers and the flathead to pop them free. there is approx. 4 clips holding the harness on.
Now once the pass side fan is removed u can unbolt the drivers side one and unplug it like the last. at this point if you haven’t drained your coolant you can do so by either removing the lower radiator hose that attaches to the motor or opening the little white “pet****” at the bottom of the radiator. Remove the upper radiator hose and also the hose with the filler cap attached. remove the fan.
Ok, now once drained, you can lift the radiator straight up out of the car. i left the lower rad hose attached to the radiator so if any coolant was left in the rad it wouldn’t spill all over the place while i was removing it. the arrow on the right and circle all the way to the left are the rubber grommets that need to be reused. also circled was the white “pet****” for reference, the temp sensor which needs to be reused, and the rad hose clamps that will be reused.
The circled sections are where you place the rubber grommets. i found it easier to set them into the holes first because they didnt wanna stay on the radiators “feet”.
Next plug temp sensor back in and attach wire harness holder to lower rad tab. put drivers side fan back in setting the lower “feet” into radiator tabs and re bolt with 10mm bolts at top. connect all necessary plugs and holders to fan. attach upper radiator hose using factory clamps also. Then attach short hose with filler cap back on also. on a note i could not get the factory clamp to fit on the hose at the rad side so i used a standard spiral clamp. put passenger side fan back into place with “feet” in the lower tabs, 2 10mm bolts in the top and all necessary wiring plugged back in.
Now set crossmember back into place. attach upper radiator supports (circled) with 10mm bolts.
ok, so now you can reinstall all other 10mm bolts for the crossmember and the hood latch mechanism
NOTE: i am not responsible for any blinding, death, dismemberment, and or anything else bad that happens to you while doing this install
this is for informational purposes only. just my $.02
thank you and have a lovely day
- DIY Write up also available on 8thcivic.com as well as other information on later year Civics.