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Hybrid Vehicles Honda Civic GX (natural gas) Honda Civic GX Engine Questions
55 messages, Last post on Mar 29, 2009 at 9:12 AM
You are in the Honda Civic GX (natural gas) Forum. Your Host is pf_flyer
One of the fuel injectors (#4) on my 2000 GX broke this week at 73k miles. Check engine light flashed and engine ran rough. The last injector (#3) failure was just over a year ago. It is now covered under emission warranty but the warranty is going away soon  80k. Parts and labor cost is expensive - around $800 each at dealer if no warranty. Wonder if this high failure rate is caused by Honda's manufacturing defect or caused by other components or the gas. I have kept up the maintenance and even changed gas filter a few months ago. Anyone else has injector failing before? Any suggestions to avoid another injector failure?
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Replying to: gxuser (Jan 06, 2006 10:58 am) The eight year 80,000 mile warranty covers only the Engine Control Module Module (computer)for the 2005 Federal warranty. I do not know what the 2000 warranty covers but It may be worthwhile obtaining a copy of the emissions warranty. The staff at the dealer may need to be reminded about the warranty.
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I've had a 00 Civic 5 1/2 years now, and my kids have driven the heck out of it, 115K mi, and never more than half a tank away from a refueling station. Luckily, there are several in the Phoeix area on our normal travel routes. I'm a competent mechanic, and have done all of the routine maintenance on the car myself. In the past few months, it has developed a stumbling idle. No troubles with injectors (good thing, they're $550 each!), changed the dist cap, rotor, plugs at 100K mi, so I don't think it is ignition. Out of frustration, I took it to a dealer for service, they have one guy who works on GX. He spent one hour (which cost me $100) to tell me that since it had Bosch Platimum plugs instead of the original NGK, that it would require a full tune-up for $450 before he could diagnose the problem. Precisely why I avoid dealer service. Anyway, I'm confident the plugs are not the problem, but still looking. Anyone have info about fuel filter problems limiting gas flow? I've seen in this forum some discussion about both high pressure and low pressure filters, anyone know whether the 00 has both?, and where they are? Thanks in advance, Jerry
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Replying to: jerrylippmann (Dec 28, 2005 9:06 am) Thanks for all the high mileage GX info. I just had the dealer change the high & low pressure CNG filters 49,000 miles on my 2001. $352.00 I was told that Honda will not sell the 2001 & newer a&b cng filters to owners. It's a GX dealer approved service item for installation only. I don't know about the CNG filters on your 2000 gx. I was glad to have the CVT transmission fluid replaced. It has made a nice difference in the ride of the car. Next week I start driving my GX from OC to Big Bear once a week for the next six weeks. 200+ miles round trip from sea level to 7,000 ft and back. I hope I can make it all the way on a full PHILL fill. It should be very interesting putting snow chains on a GX.  I'll keep you all advised Deon |
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Replying to: thatdeonguy (Dec 28, 2005 11:36 am) you're right about the dealer not wanting to sell the CNG Fuel filter. They don't outright refuse, but to have them replace it costs $132 (Part + 1 hr labor), and to purchase the parts is $849. I am strongly leaning towards having the dealer do the replacement (duh!). Good luck in your weekly runs to Big Bear. I'd rarely get 200 mi range, you must have larger tank(s). All the best, Jerry |
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Replying to: jerrylippmann (Dec 28, 2005 9:06 am) John |
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Replying to: jerrylippmann (Dec 28, 2005 1:44 pm) Replacing the low pressure filter is similar to replacing an oil filter. The first step is to relieve the fuel pressure between the engine and the manual shut-off valve. I hope this does not become a dealer scam to sell both filters every 10,000 miles when the schedule indicates only an inspection of the high pressure filter every 10,000 miles. The factory service manuals can be purchased from Helm. The web site is www.helminc.com |
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Replying to: fbaldwin (Dec 28, 2005 10:20 pm) I love this forum, you guys are the best. I have been looking everywhere for the Honda Service Manual GX Supplement. Thanks for the info, I just ordered one. Speaking of Dealer scams, my Dealer informed me that they recommend removing the CNG tank 40,000 miles to inspect and check for leaks. For only $550.00! I know that before I bought the car it had a warranty service to repair a gas leak. And since I don't smell gas I think I'll hold off on that dealer recommendation. I did ask the dealer to print out all the warranty repairs Honda had in it's computer for my VIN. I bought the car just after the warranty expired. I have most of the original work orders from the previous buyer but it was nice to double check what had been serviced before I bought the car. Thanks Again! Deon |
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Replying to: fbaldwin (Dec 28, 2005 10:20 pm) He again attributed my rough idle to non-OEM parts (I guess Bosch doesn't know how to make Platinum plugs, or automotive spark plug wires). When I was ready to take the plunge and buy the Honda parts, the guy at the parts counter had seen the rough idle problem in the past, and knew it had been fixed by changing the distrubutor base plate. This is the main housing which carries the spindle, and the dist cam sensor. He didn't know whether it was bearing wear causing spindle wobble, sensor position, or sensor failure, but he was pretty sure it would work. HE WAS RIGHT! $225 USD later, my rough idle was gone. This was great info from a guy who does not diagnose car trouble, but observed what worked to solve this problem in the past. He also agreed with me that Honda parts makers don't have any proprietary pixie dust to make their parts work better than other equivalent parts from alternate suppliers. All the best, Jerry
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