New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

I have an idling and white smoke problem

Thread Tools
 
Search this Thread
 
Old Aug 7, 2012 | 11:52 PM
  #1  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
CA I have an idling and white smoke problem

So recently I got smashed on my driver side headlights it dented my fender and my bumper, and my headlight, I drove it home perfectly but it was having some problem idling every time I stopped the rpm would drop up and down.

I believe the car had a vacuum leak because even before the accident happened the rpm would jump up and down in the morning when I started it up, but after the car finishes warming up like 5-10 minutes later it would be fine.

Okay so the next morning I started up the car perfectly fine but it still had the warm up problem, This time I didn't let it warm up all the way and drove it up to my driveway, I turned off the engine and it made a weird noise. I didn't bother to start it up again though, couple hours later when I tried to start it again it wouldn't start so I took my battery to work and recharged it when I came home i put the battery back in and cranked up the car and the RPM went crazy it start jumping from 3,000 to 100rpm, a lot of white smoke was coming out of the exhaust and white smoke was also coming out of the engine. I have no idea what is going on now I was wondering if anyone can help me please
Reply
Old Aug 8, 2012 | 09:36 PM
  #2  
insanerxpower's Avatar
Full Member
 
Joined: Apr 2011
Posts: 56
Likes: 0
From: stony plain
sounds like you coolant seals went.
Reply
Old Aug 9, 2012 | 11:52 AM
  #3  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
I'll check that out too! But yesterday I started it up again and played with it a little more, now its blowing out black smoke from the exhuast, everything starts up but the car does not run, the max rpm is 5000 the clutch wont catch, the Car Idles at 100

I made a video I'll post it soon thank you please help
Reply
Old Aug 9, 2012 | 05:24 PM
  #4  
insanerxpower's Avatar
Full Member
 
Joined: Apr 2011
Posts: 56
Likes: 0
From: stony plain
black smoke is carbon. and if your clutch wont catch at all, then your clutch is probably toast too. that or something is stuck. not sure. but the idling thing im not sure. could be anything. apex seals went, computer is fried, could be anything. does your car have a hook up for diagnosis?
Reply
Old Aug 9, 2012 | 05:42 PM
  #5  
RotaryEvolution's Avatar
Sharp Claws
Tenured Member 15 Years
iTrader: (30)
 
Joined: Oct 2003
Posts: 5,107
Likes: 50
From: Central Florida
if this is an FD sounds like the front harness got smashed to me, the MAP sensor wiring runs through the front main harness and has a tendency to do this when the MAP sensor goes offline.

if it's an FC then it is likely coincidence and probably is a coolant seal that went after the accident.
Reply
Old Aug 10, 2012 | 12:38 AM
  #6  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
https://www.youtube.com/watch?v=0jc12lOchBc

Heres the video, and if anyone knows how to take out the seatbelt sensor can they please help me its driving me nuts ahahah

I'm pretty sure its not just coolant
Reply
Old Aug 10, 2012 | 01:28 AM
  #7  
88fc3sT2's Avatar
Senior Member
iTrader: (1)
 
Joined: Jun 2012
Posts: 470
Likes: 0
From: Fort Lauderdale
Says the video is private.
Reply
Old Aug 10, 2012 | 01:44 AM
  #8  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
I fixed it now sorry
Reply
Old Aug 10, 2012 | 07:25 PM
  #9  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
Video should be able to watch now
Reply
Old Aug 10, 2012 | 07:30 PM
  #10  
CALPICO's Avatar
Full Member
iTrader: (4)
 
Joined: May 2011
Posts: 125
Likes: 0
From: Union City, CA
assuming its not street ported or anything... it sounds like a compression issue...
Reply
Old Aug 10, 2012 | 07:33 PM
  #11  
euler's Avatar
Full Member
 
Joined: Aug 2012
Posts: 82
Likes: 0
Where is the clanking coming from? Is it just from the engine almost dying or can you hear it in a specific spot even when revving the engine?
Reply
Old Aug 10, 2012 | 07:34 PM
  #12  
jfolsom28's Avatar
Junior Member
 
Joined: Aug 2012
Posts: 4
Likes: 0
From: United States
I have the samw problem
Reply
Old Aug 10, 2012 | 07:40 PM
  #13  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
Originally Posted by euler
Where is the clanking coming from? Is it just from the engine almost dying or can you hear it in a specific spot even when revving the engine?
Which clanking?
Reply
Old Aug 10, 2012 | 07:42 PM
  #14  
euler's Avatar
Full Member
 
Joined: Aug 2012
Posts: 82
Likes: 0
Just when it's idling, it has a clunking noise, but I think that is just like when it's nearly quitting. Mine is making a clanking noise and I just wondered if you might be hearing something similar.
Reply
Old Aug 10, 2012 | 07:44 PM
  #15  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
Originally Posted by euler
Just when it's idling, it has a clunking noise, but I think that is just like when it's nearly quitting. Mine is making a clanking noise and I just wondered if you might be hearing something similar.
I'm pretty just it because it's just dying yeah :/
Reply
Old Aug 10, 2012 | 07:46 PM
  #16  
euler's Avatar
Full Member
 
Joined: Aug 2012
Posts: 82
Likes: 0
Ok thanks.
Reply
Old Aug 10, 2012 | 11:56 PM
  #17  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
Originally Posted by RotaryEvolution
if this is an FD sounds like the front harness got smashed to me, the MAP sensor wiring runs through the front main harness and has a tendency to do this when the MAP sensor goes offline.

if it's an FC then it is likely coincidence and probably is a coolant seal that went after the accident.
Do you have any idea by looking at the video?
Reply
Old Aug 11, 2012 | 09:22 AM
  #18  
joelkarlonas's Avatar
Piston Eater
 
Joined: Jun 2012
Posts: 107
Likes: 0
From: regina SK
if your coolant goes low, ya ticked. therefore its bad coolant seal, which driving up a hill without it being warm at all is enough to make that **** cheating girlfriend of a rotary engine decide to leave this earth and fuckitself
Reply
Old Aug 12, 2012 | 06:58 PM
  #19  
Panameno's Avatar
Junior Member
iTrader: (1)
 
Joined: Jul 2012
Posts: 17
Likes: 0
From: San Diego CA
seems like its time for a new engine or rebuild.
Reply
Old Aug 18, 2012 | 12:26 AM
  #20  
RX7SpiritR's Avatar
The Spirit of FLUFF!
Tenured Member 20 Years
iTrader: (1)
 
Joined: Oct 2002
Posts: 1,350
Likes: 0
From: East Highland, CA
Is it stock? Mine had a similar problem and it turned out to be my map sensor harness, but i have an FD pfc and 3 bar map sensor.
Reply
Old Aug 19, 2012 | 01:30 PM
  #21  
genefc3's Avatar
Junior Member
Tenured Member 10 Years
 
Joined: Sep 2006
Posts: 10
Likes: 0
From: nevada
u might have blown apex seal...
try doin compression check
Reply
Old Aug 19, 2012 | 09:50 PM
  #22  
bpdchief's Avatar
Full Member
Tenured Member 05 Years
iTrader: (7)
 
Joined: Jun 2012
Posts: 204
Likes: 3
From: New Mexico
Sounds like blown apex seal on one of the rotors. One rotor is probably fine. That's why it starts and runs but idles like crap.
Reply
Old May 5, 2013 | 11:11 PM
  #23  
ShiftDownx's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2012
Posts: 9
Likes: 0
From: San Leandro
The intake sensor was unplugged lol
Reply
Old May 6, 2013 | 01:39 AM
  #24  
JimmyJackson's Avatar
Junior Member
 
Joined: Apr 2013
Posts: 6
Likes: 0
From: USA
dark smoking is carbon. About the idling thing i m not sure. could be anything. Main head closes right , computer is fried, could be anything. does your car have a connect for you know if some one may want to just go for a quick analysis.
Reply
Old May 6, 2013 | 11:01 PM
  #25  
Sputnik7's Avatar
What are you new?
Tenured Member 05 Years
iTrader: (1)
 
Joined: Mar 2008
Posts: 10
Likes: 0
From: Seattle, WA
Sounds a whole lot like you blew a seal, but trouble shoot it from the potential harness as the others are saying. It sounds like mine did when I lost my rear rotor. And mind you I wasn't doing anything too crazy, so crazier things have happened. I'll keep my fingers crossed that you just grounded/shorted out the MAF harness.
Reply



All times are GMT -5. The time now is 06:53 PM.