Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

Long crank time, not starting when warm

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 07-03-2009 | 09:48 PM
  #1  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
Long crank time, not starting when warm

hey guys I'm new to the rx8 forums I drove my gfs rx8 for the past 6 months now I have decided to buy one but it has a problem, once its warm it wont start til it cools down a little? is this a easy fix? common problem? thanks for all the help guys!
Old 07-03-2009 | 09:52 PM
  #2  
04RX8man's Avatar
Rotary Powered Countryboy
 
Joined: Feb 2007
Posts: 4,811
Likes: 1
From: Pittsburgh
we need some more info....year? Mileage? do you know if the coils/plugs have been changed recently?
Old 07-03-2009 | 09:55 PM
  #3  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 46
From: Streetsboro, OH
If your car doesn't have the upgraded starter, I would suggest buying one.
Exactly the same problem I had.
Old 07-03-2009 | 10:08 PM
  #4  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
2004, 109k it will run fine all day once started just when u shut it off it wont start for a bit, think it has orginal coils and plugs as well.... what do u mean upgraded starter!??! sorry new to rx8s
Old 07-03-2009 | 10:27 PM
  #5  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 46
From: Streetsboro, OH
The starters were known to be weak in the '04 & '05 models.
Like any car, the starter is what turns the flywheel when you turn your key to 'start'.
Very easy to change out.
Long crank time, not starting when warm-starter-10-.jpg
Old 07-03-2009 | 10:30 PM
  #6  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
so just grab one out of a 06? but would that be the reason it wouldnt start after being warm it starts fine cold and runs fine its just when u turn it off then try and start it when its warm its weird
Old 07-03-2009 | 10:30 PM
  #7  
alnielsen's Avatar
Registered
iTrader: (4)
 
Joined: Aug 2004
Posts: 12,255
Likes: 7
From: Buddhist Monastery, High Himalaya Mtns. of Tibet
There was a service bulletin about a higher speed starter being available for the car. But, I suspect a new starter most likely won't solve your problem. Get a compression check. I suspect you have a engine problem. Unfortunately, the extended engine warranty runs out at 100K mi.

Last edited by alnielsen; 07-03-2009 at 10:34 PM.
Old 07-03-2009 | 10:38 PM
  #8  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
you think? I havent bought it yet.... the thing is it has no check engine lights run fine.. I drove it 8hrs one day with zero problems and shut it off and waited like 30min and it started fine.. anyone know what the compression is supposed to be on these engines and is it easy to do? I have a compression tester
Old 07-03-2009 | 10:43 PM
  #9  
alnielsen's Avatar
Registered
iTrader: (4)
 
Joined: Aug 2004
Posts: 12,255
Likes: 7
From: Buddhist Monastery, High Himalaya Mtns. of Tibet
I've had 3 engines replaced. This is how my first one died. I pulled into the gas station, filled the car up with gas and I couldn't restart it for 20 min. The car only had 13K miles on it at the time. At first the dealer couldn't reproduce the problem. Then the exhaust got louder and then the dealer replaced the engine.
Old 07-03-2009 | 10:47 PM
  #10  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
wow thats scary makes me not even want to maybe buy it.... **** well Its a 2004 black spotless I can get it for 5800 think I should pull the trigger
Old 07-03-2009 | 10:51 PM
  #11  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
did they ever find out if it was actually blown or did they just replace it
Old 07-03-2009 | 10:53 PM
  #12  
Brettus's Avatar
Boosted Kiwi
iTrader: (2)
 
Joined: Apr 2006
Posts: 20,604
Likes: 1,535
From: Y-cat-o NZ
Originally Posted by joshmoe
wow thats scary makes me not even want to maybe buy it.... **** well Its a 2004 black spotless I can get it for 5800 think I should pull the trigger
That seems very cheap . Get the compression check done - if it is ok I'm sure the problem will not be hard to fix ...
Old 07-03-2009 | 10:54 PM
  #13  
alnielsen's Avatar
Registered
iTrader: (4)
 
Joined: Aug 2004
Posts: 12,255
Likes: 7
From: Buddhist Monastery, High Himalaya Mtns. of Tibet
They said there was low compression in both rotors. Mazda dealers don't open up the engines. So, I don't know exactly what the problem was.
Old 07-03-2009 | 10:58 PM
  #14  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 46
From: Streetsboro, OH
All I'm saying is I had the same problem.
I could start fine when it was cold, but if I went to the gas station and tried to start it again, it would have a tough time starting.
But what do I know... I must be wrong...
Old 07-03-2009 | 11:01 PM
  #15  
alnielsen's Avatar
Registered
iTrader: (4)
 
Joined: Aug 2004
Posts: 12,255
Likes: 7
From: Buddhist Monastery, High Himalaya Mtns. of Tibet
No one is saying your wrong. A starter is one of the possibilities. A compression check will rule out the engine being bad. Besides the starter, it could be coils & plugs.
Old 07-03-2009 | 11:03 PM
  #16  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
I know how the guy got the car he bought it at a auction he is a small dealer and thought he would make some money on it but since it isnt starting when warm he is just trying to get out of it what he has into it. He doesnt know **** about rotary engines but they guy has been super upfront with me about the situation. how do you do the compression tests on these motors?
Old 07-03-2009 | 11:05 PM
  #17  
05rex8's Avatar
sold the 8... :(
iTrader: (7)
 
Joined: Feb 2008
Posts: 4,917
Likes: 0
i say it's low compression too
you will have to take it to the dealer unless you know someone with a rotary compression tester
Old 07-03-2009 | 11:06 PM
  #18  
joshmoe's Avatar
Thread Starter
Registered User
 
Joined: Jul 2009
Posts: 8
Likes: 0
**** my life I dont have one
Old 07-04-2009 | 01:14 AM
  #19  
Jon316G's Avatar
Grasshopper
iTrader: (1)
 
Joined: Dec 2006
Posts: 6,779
Likes: 46
From: Streetsboro, OH
Originally Posted by alnielsen
No one is saying your wrong. A starter is one of the possibilities. A compression check will rule out the engine being bad. Besides the starter, it could be coils & plugs.
I agree with you... just got a little defensive when it appeared that something was being ruled-out without properly troubleshooting it.
Sometimes I just walk away from the forum because I feel that nobody is really helping someone to troubleshoot and narrow down their issue more.
People tend to say, "buy this, this, this and this" in hopes that one of those items will help.
I, like many, don't have the funds to just buy random parts hoping it'll fix the problem.

Sorry for getting defensive and the unnecessary comments... back to the thread
Old 07-04-2009 | 02:30 AM
  #20  
swoope's Avatar
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,602
Likes: 36
From: orlando, fl
at 100k miles the fuel pump would also be an idea.

but at that mileage a compression test would have to happen.

beers
Old 07-04-2009 | 05:32 AM
  #21  
Razz1's Avatar
Mu ha.. ha...
 
Joined: Aug 2004
Posts: 14,361
Likes: 3
From: Cali
Compression test has to be done at dealer as it has to b done at 250 RPM for correct reading.
Old 07-04-2009 | 12:16 PM
  #22  
04RX8man's Avatar
Rotary Powered Countryboy
 
Joined: Feb 2007
Posts: 4,811
Likes: 1
From: Pittsburgh
yeah if you're thining about buying this thing I would tell the guy to pay for a compression test and look at the results before you buy...5800 is a good price IF the motor is good..if not then it's not a good deal enless ur looking to swap out a motor as soon as u get it!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Audio Concepts ATL
New Member Forum
21
09-26-2021 02:59 PM
rotorsnsaabs
New Member Forum
11
08-26-2015 09:21 PM
robd1337
New Member Forum
11
07-31-2015 10:35 PM
Davey's RX-8
Series I Trouble Shooting
0
07-28-2015 01:13 PM
MrORAN6E
New Member Forum
2
07-24-2015 10:32 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Long crank time, not starting when warm



All times are GMT -5. The time now is 11:43 AM.