NuRx-8

So its raining an my 04 rx8 wont start everty thing turns it just wont start wth!? andy ideas?

RIWWP

iTrader: (2)

Any details?

There are alot of different ways of having a "no start" and most of them have different symptoms, different points the "starting" process stops at.

The process is:
1: Key in
2: Clutch in
3: clutch sensor closes the circuit allowing start
4: Key to start
5: Starting relay opens, providing power to the starter from the battery
6: Battery power cranks over the starter motor
7: Starter motor spins the engine through the flywheel
8: Ignition opens
9: Coils get power, begin generating spark current
10: Wires transmit the current to the plugs
11: Plugs begin to spark
12: Fuel pump begins pumping
13: Engine standard compression and combustion should occur

It is possible for a no-start condition to be due to a failure at any one of the above points.

How far are you getting?

NuRx-8

sorry i posted this twice but i thought it might be flooded so i tried deflooding from a thread in the diy same noise car is turning but not sparking i just changed the spark plugs since previous owner had the wrong spark plugs on so im guessing its the coils even tried jumping it but its an 04 auto so now im just waitng on the new coils i ordered today since no one has them in my area

RIWWP

iTrader: (2)

That didn't really answer any of the questions

So you have cranking, so you are at least getting to step 7.

If you were flooded, it simulates a no-spark, since the spark can't occur from too much fuel on the plugs. Though a no-spark can occur from the plugs not actually firing either, and if you have new plugs, then it could still be the wires or the coils, or both.

You are already taking the step I would recommend, since you don't know how old the coils are. Don't forget the wires, though they are cheaply picked up.

NuRx-8

So i just changed the ignition coils and nothing changed still sounds like it wants to but it wont start still anyone online that can help i can post a vid if needed

RIWWP

iTrader: (2)

So you have gotten to step 9. Are your plugs clean and intact? Have you checked the fuel pump fuse? Are you out of gas?

If none of those are your issue then it will be compression related. Either A) the engine is not spinning fast enough to create the needed compression, and you need to replace the starter, or the engine is low on compression itself.

NuRx-8

testing spark plugs the two trailing spark plugs have a delay to spark takes about 3 or 4 cranks to spark on the tester

NuRx-8

Ok so i just pulled the oil dipstick out and it had some light cream colored goo on it condensation?

NuRx-8

also just looked into oil cap and there is yellow tint around the inner lining

RIWWP

iTrader: (2)

Yeah, that's just condensation on the oil, non issue.

And the delayed spark is normal. It waits till your engine is above a minimum crank speed to start sparking.

NuRx-8

pulled out brand new spark plugs and they have a black liquid on them look like a mixture of oil and gas but not sure

NuRx-8

Only the two trailing are saturated with the mixture i have no clue wth is goin on

RIWWP

iTrader: (2)

Sounds like gas/oil/carbon mix. I'm guessing you probably have a flooded engine.

Clean the spark plugs, MAF cleaner, throttlebody cleaner, something petroleum based like that. Re-install the spark plugs.

Pull the fuel pump fuse and crank the engine in 10 second bursts, maybe 5 times, letting the starter cool down between each burst. Reinstall the fuel pump fuse and try starting it.

If that doesn't work, is pull starting or push starting an option for you? If so, do that, let out the clutch in 2nd or 3rd gear, not 1st.

NuRx-8

yea its an auto so its ok to have oil and the plugs? it looks like mostly oil we pulled all plugs and turned it over and the mixture spurted out once oil then gas then oil but only out of last trailing flooded?

RIWWP

iTrader: (2)

It shouldn't be spurting out of the plug holes at all, there shouldn't be more than a mist or so in there, so yeah, definitely flooded.

Follow this DIY for deflooding, it's the best one we have: https://www.rx8club.com/series-i-do-yourself-forum-73/diy-deflooding-average-joe-plumber-182410/

RIWWP

iTrader: (2)

BTW, If you have a cat on the car still. Deflooding will be reducing it's lifespan quite a bit. So expect that it will fail earlier now.

NuRx-8

and now it seems like my battery is dead when charger says im full

RIWWP

iTrader: (2)

Cranking drains it fast. Gotta get jumper cables for it.


90% of the problems that the 8 can experience are just snowballed issues from 1 minor issue that started everything.

NuRx-8

Thanks for all the help guys 5 hrs later and she is running!

RIWWP

iTrader: (2)

Glad to hear it!

NuRx-8

yea new coils and spark plugs but she still misfires lol wires next week?