Oppo I need some help

"Denver Is Stuck In The 90s" (denver80222) 07/13/2014 at 20:04 • Filed to: honda help

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My parents 2000 Honda Odyssey EX-Nav Decided to crap out today. It runs but horribly. I pulled the dipstick and the oil level is low but not dangerously low and the oil smells like gas, feels like alcohol and is dark brown. Any Ideas whats wrong? See attached youtube video for more details.

Anybody Have Ideas to Whats wrong?

Jake - Has Bad Luck So You Don't Have To > Denver Is Stuck In The 90s 07/13/2014 at 20:08

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Oil smells like gas? Sounds like a head gasket, but I'm not an expert by a long shot.

Twingo Tamer - About to descend into project car hell. > Denver Is Stuck In The 90s 07/13/2014 at 20:09

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All of those are just symptoms of old oil. As for the revs dropping and general bad running it could be numerous things. I've seen it be from several things from a sticky throttle/ idle air control stuff, to the sensor that adjusts the engine revs to account for load from the power steering pump. Get an OBD 2 reader and see if it's throwing up any codes and go from there.

Denver Is Stuck In The 90s > Jake - Has Bad Luck So You Don't Have To 07/13/2014 at 20:10

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I was thinking head gasket as well

Jeff-God-of-Biscuits > Denver Is Stuck In The 90s 07/13/2014 at 20:13

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How often is the oil changed?

lone_liberal > Denver Is Stuck In The 90s 07/13/2014 at 20:14

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I'm not master mechanic but you might have lost compression in a cylinder and the air/gas is getting past the rings and getting in to the oil. Maybe do a compression check on the cylinders?

Denver Is Stuck In The 90s > Jeff-God-of-Biscuits 07/13/2014 at 20:15

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every 3 months

Twingo Tamer - About to descend into project car hell. > Denver Is Stuck In The 90s 07/13/2014 at 20:15

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Oil and gas mix over time when tiny amounts of gas passes the piston rings. Therefore as the oil gets older it smells like gas and gets thinned. A head gasket wouldn't neccesarily cause something like that.

whoarder is tellurium > Denver Is Stuck In The 90s 07/13/2014 at 20:15

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Pull codes first. Then come back here. You've definitely got a misfire. If you've got fuel in your oil, could be stuck injector/bad injector. Or, if something damaged internally and is contaminating oil - coolant maybe as well.

Jeff-God-of-Biscuits > Denver Is Stuck In The 90s 07/13/2014 at 20:15

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Just making sure... Also, how long since the last change? Time and mileage?

Denver Is Stuck In The 90s > whoarder is tellurium 07/13/2014 at 20:16

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I would if I had an obdII reader

whoarder is tellurium > Denver Is Stuck In The 90s 07/13/2014 at 20:17

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Advance Autoparts, Autozone, etc. read codes for free.

Denver Is Stuck In The 90s > Jeff-God-of-Biscuits 07/13/2014 at 20:18

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the mileage is 93k and last change was middle of may, It gets driven less than 500 miles a month

Denver Is Stuck In The 90s > whoarder is tellurium 07/13/2014 at 20:20

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I was just thinking about that not 60 seconds ago, there is an autozone walking distance from me, my brother and I may go tonight

Twingo Tamer - About to descend into project car hell. > Denver Is Stuck In The 90s 07/13/2014 at 20:21

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Also I just watched the end of the video and if it smells like it's burning oil + strong gas smell in oil (provided the oil is newish) it could be bad piston rings. Again though it could be a number of things.

Jeff-God-of-Biscuits > Denver Is Stuck In The 90s 07/13/2014 at 20:21

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Yeah, it sounds like the next step is codes. Also, invest in an OBD bluetooth link. That and an app like "torque" should run you less than $25, and will save you tons of heartache and time.

Klaus Schmoll > Denver Is Stuck In The 90s 07/13/2014 at 20:33

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Wait what? you are driving?

crowmolly > Denver Is Stuck In The 90s 07/13/2014 at 20:37

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Post back when you get the codes read. Anything else is really speculation at this point. Was the A/C on at the time?

JGrabowMSt > Denver Is Stuck In The 90s 07/13/2014 at 20:42

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Head gasket would be more likely to put oil in the coolant I would think. Low compression caused by worn rings caused by low oil could be a problem though. If the oil is really changed every 3 months, you need to find the leak though. If it was really burning that much oil, either the PCV system is clogged and you'd have lots of blue smoke, or there's a big leak, and you should be seeing a puddle somewhere under it.

clogged PCV can cause lots of oil consumption, just like worn piston rings. I'd worry about the smell after you identify the reason for it being so low, so soon.

Rico > Denver Is Stuck In The 90s 07/13/2014 at 20:57

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Besides oil what was the last maintenance performed and when? Might be useful in determining if a service center really missed something last time you were in.

Denver Is Stuck In The 90s > Rico 07/13/2014 at 21:05

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it was the middle of may it went in for brake service

dogisbadob > Denver Is Stuck In The 90s 07/13/2014 at 21:06

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P9999 VTEC Failure to kick in yo

Vince-The Roadside Mechanic > Denver Is Stuck In The 90s 07/13/2014 at 21:11

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It is in the fuel system.

Denver Is Stuck In The 90s > Vince-The Roadside Mechanic 07/13/2014 at 21:11

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what makes you say that

Vince-The Roadside Mechanic > Denver Is Stuck In The 90s 07/13/2014 at 21:12

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misfire = injector. it seems one of your injectors is dying.

Twingo Tamer - About to descend into project car hell. > Denver Is Stuck In The 90s 07/13/2014 at 21:15

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I'd pull plugs and check them for fouling that'll tell you if there's a lot of oil in the combustion chamber or if it's running rich. There are a lot of possibilities here though. A decent list to start with is pull plugs, clean MAF, check condition of ignition coils, check injectors.

Denver Is Stuck In The 90s > Vince-The Roadside Mechanic 07/13/2014 at 21:17

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15 year old injectors + driving till the tank is almost empty for 10+ years = probably

Denver Is Stuck In The 90s > Twingo Tamer - About to descend into project car hell. 07/13/2014 at 21:20

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My parents have a guy, Ol Merv (the van's name) is going there tomorrow morning

samssun > Denver Is Stuck In The 90s 07/13/2014 at 21:27

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Shakiness indicates a misfire. Troubleshooting an engine starts with its components: fuel, air, spark. Your codes indicate any/all of the above.

You could start with the easy stuff like checking for vacuum leaks and the condition of your spark plugs, spraying electrical cleaner into all of your connectors (pack with dielectric grease to prevent future corrosion), and running injector cleaner through your tank.

If there's no change, could be a dying injector, bad idle air valve, or even ECU itself.

Jeremy H formerly Kalakaboooom > Denver Is Stuck In The 90s 07/13/2014 at 21:30

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First things first, I would do a compression test, to see if all the cylinders are still good, and if they are all good, then start trying to track down the misfire. Check for hose leaks, replace all of your spark plugs, and then go down the line. Plugs, coils, fuel injector relays, fuel injectors,

Rico > Denver Is Stuck In The 90s 07/13/2014 at 21:39

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Well in that case they likely wouldn't have looked under the hood but I typically expect most service centers to try to find everything that they think is "wrong" to convince you to get it fixed there so they can make money.

Denver Is Stuck In The 90s > Rico 07/13/2014 at 21:41

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Not the guy we take our cars to, hes actually one of the few professional mechanics that doesnt try to replace as much as possible in the name of the almighty dollar, Plus he has free 20+ year old, well maintained honda loaners

Zipppy, Mazdurp builder, Probeski owner and former ricerboy > Denver Is Stuck In The 90s 07/13/2014 at 21:44

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Also check the spark plugs and ignition coils. I've had a misfire caused by a bad coil.

Denver Is Stuck In The 90s > Zipppy, Mazdurp builder, Probeski owner and former ricerboy 07/13/2014 at 21:45

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good to know I'll tell my mom when she takes it in tomorrow, not my car not my job to fix it

JGrabowMSt > Denver Is Stuck In The 90s 07/13/2014 at 22:09

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1) Pull a spark plug and post a picture 2) check the air filter and see if there's oil on the throttle body side 3) check the PCV filter if it has one 4) look for dry rotted/cracked rubber hoses 5) check the coolant color in the overflow tank 6) find/clean the EGR valve if possible.

I would switch over to fully synthetic oil and put on a new filter. Is there a real reason you've been changing it at 3k miles? It's got to be out of warranty by now, so I hope the dealership hasn't been milking you guys for "required" oil changes. Run synthetic, change it once a year or every 12k, whichever comes first. Black oil is not bad oil, clumpy oil is bad oil. My dads 03? Voyager went 37800 on an oil change with mobil 1 fully synthetic. Drove it halfway across the country and back, and the salt from the roads ate through the oil pain, otherwise the car would have just gotten a regular change. Conventional oil isn't really that good in modern engines I would hazard saying at this point. With so many cars now requiring synthetic, it's time to switch. If the synthetic has problems, I promise you the problem was already there, you just found it a lot easier.

Do the temps stabilize normally, or does it run hotter than usual? You've got your initial checklist, but like I mentioned before, you need to figure out why it's consuming so much oil in such a short amount of time. Clogged PCV can do it, bad fuel injector can cause a problem sort of like this as well. Given the age of the engine, if you're going to do all the work yourself, and the car could be considered a write off in a worst case scenario, you could try running a fuel system cleaner through it, but you need to check your fuel pressure and make sure it's within spec.

DipodomysDeserti > JGrabowMSt 07/13/2014 at 22:45

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Switching from dino to full synthetic oil after 15 years could cause your gaskets to leak. Generally not a good idea. The main difference between syn. and dino is that syn. doesn't need additives in order to have cold/warm viscocities, so you can run it longer. 37,800 miles is neglect especially on mobile one, which is crap oil.

JGrabowMSt > DipodomysDeserti 07/13/2014 at 22:53

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I'm guessing the gaskets are shot regardless. The motor sounds like a lawn mower under power at the exhaust...

When I have a problem with Mobil 1, I'll let you know. Next oil change in the wagon is probably going to be royal purple though. Time to switch to something new. 144k is enough to make me look at new options, considering I'm looking to double the mileage before I get rid of the car, at the very least.