kieethes

I just replaced the belt on a 2004 civic hybrid, with a shorter belt, to bypass the A/C compressor. The bearing in the compressor has gone bad, and replacing it and other components required during a recharge, makes the repair cost more than the car is worth. The belt used is a Dayco 5040398. I also unplugged the electrical connector at the rear of the unit to keep it from clicking or other melt down nonsense.

John Harlan

Wil it work for my 2003 Civic hibird.? I have same problem

Curtis Johnson

I too have an '03 Hyb. with a seized AC clutch. I read that a belt for a 2002 DX without AC by-passes the AC pulley entirely without having to remove the pump. I am going to find out if it is true tomorrow.

Curtis Johnson

That information is incorrect. I found that out this evening. The 2002 DX belt is wider because of the alternator. The belt you need is "driveworks" 398K4. I got it at Advance Auto. This is for the Hybrid only.

03civicMt

Did you replace the ac compressor? How did you take it out? Its compacted in there

Andrew207

I just did this on my car yesterday using the shorter belt mentioned to bypass the stuck AC. I didn't remove the AC.

I couldn't find a lot of information about this so here's what I know and hopefully it helps someone.

The belt only runs the water pump and AC unit. There's no alternator in the 01-05 civic hybrid. Mine is an 04'. The original belt was on 4 things. The engine pulley, up to the idler pulley, down to the AC and back over the water pump returning to the engine pulley. With the shorter belt it goes from the engine to the idler, back over the water pump and then the engine. I found a belt diagram here
https://electricvehicleforums.com/fo...ypass-c-31808/

Honda Civic hybrid 1.3 belt diagram

The idler/tensioner took a minute to figure out. There are two bolts on top of the tensioner. One holds a plastic shield on and the other tightens the tensioner. Take the plastic shield off and unclip it from the little hose it holds. Loosen the second bolt most of the way. I took it all the way out and then screwed it back in a little. To actually move the tensioner you have to loosen the nut on the side of the tensioner pulley. Just a half a turn or a bit more let's it slide up and down.

When you replace the belt tighten the top bolt to pull the tensioner up. Then make sure to retighten the nut on the side to hold the pulley in place.

The belt took me like a half hour to get into place it's very awkward but eventually you'll get it. I used something long and thin to push the belt around in the narrow space.