okay, WTF happened? Broken Tranny? or huh?!? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jakal · 03-16-2007, 12:30 AM

Okay, now here's the problem, i was driving around....and like all of a sudden, while in 3rd gear, my car starts stalling, then like it starts jumping, and reving around 3-4k RPM....The car shuts off by itself while i pull over...then i start it back up....ez!....Hmm....WTF? i get back on the road and the car just stalls and revs and jumps....i cant go pass 3.5k RPM....the car just shakes, as if there's no power....well thank god i made it home from walmart, but i could only go like maybe 40 mph MAX....anyone have a clue wtf happend?

When i parked my car, i rev'd it, but all it did was shake around 3.5 rpm....i dun dare go pass that, so here i am, typing away at 2:24 AM....Thanks in advance for the help....

Yang

s13speeddrft · 03-16-2007, 12:46 AM

can it go above the 3.5 k or did you just stop revving since it was bucking?

jakal · 03-16-2007, 12:48 AM

well, since when i was driving, i wouldnt go pass 3.5...i bucked around 2.5-3.5....

zugoi · 03-16-2007, 12:50 AM

When you rev the car with the clutch down is the problem still there or when you take it out of gear into nutrel. If its still there it sounds like it could be mafs. If the problems only happen when you in gear i guess its bad tranny.

McRussellPants · 03-16-2007, 12:54 AM

Gigantic Vacuum leak.

!Zar! · 03-16-2007, 01:03 AM

Maf. Mkay?

jakal · 03-16-2007, 01:09 AM

it happens when im in gear only while driving....if i sit in park w/ e-brake and rev, same thing happens

zugoi · 03-16-2007, 01:14 AM

check vacuum lines so see if there is vaccuum leak and mafs.

!Zar! · 03-16-2007, 01:16 AM

Sounds like your car is in limp mode. And that the maf isn't working properly. So I would suggest checking your maf. Could be a vacuum leak but I'm pretty sure it's your maf.

Bryants95240sx · 03-16-2007, 01:18 AM

vacuum leak or mafs

jakal · 03-16-2007, 01:18 AM

iights.....ill check in the morning.....thanks for the info.....if it was a tranny prob, how would it sound/be?

jakal · 03-16-2007, 02:58 AM

okay, i think it's the MAF...anyone know how to clean the Maf? iso a new one....if anyone has one, pm me! ull c a thread up in WTB too.....

ROTTEN EGG · 03-16-2007, 03:26 AM

just get a can of intake cleaner. i used some brake cleaner but that isnt the best idea.

*PBucch* · 03-16-2007, 07:04 AM

Id recommend checking your cap and rotor too.

jakal · 03-16-2007, 10:26 AM

okay....now my car wont stay on after i started up the engine. It'll turn, then turn on, but right when the car starts, it starts bucking, and im not even reving, just my foot on the damn clutch....it'll rev High to low (1.5-.5) then once it reaches 0, it shuts off....i cant get it to stay on....just an update....and im kinda noob to this, so where is my MAF located? lol....is it the thing that's connected to my Air filter? cause it sure looks like it...lol...srry for nooby ? there...

!Zar! · 03-16-2007, 10:29 AM

Woah. Don't use brake cleaner or anything else. That's a good way to destroy your maf.

Use maf cleaner; can be found as an aerosol from your local auto parts store.. If you can't find that, then pick up some contact cleaner. That's the proper way to clean it.

The maf is the piece that screws into the side of your airfilter box. It's held on my four screws and has a plug going into it. Unscrew the maf then unclip the electrical plug so you can clean the maf.

jakal · 03-16-2007, 10:31 AM

yeah i got some, i just picked it up at autozone...first customer, YEAH!

anyone know why my car is starting up so weird??

jakal · 03-16-2007, 12:40 PM

okay, now my car wont start.....it'll crank, but it wont start...it just died....and umm...i took off my air filter, and like looked at the MAF, and it was pretty clean to me, even the air filter was clean, maybe a bit of pollen here n there, but i just blew it off....i'm going to check the vacuum next, but i have a feeling it's not that....anyone else have an idea????

kandyflip445 · 03-16-2007, 04:39 PM

Whenever my MAF was dirty I couldn't tell by looking at it. Just spray some air intake cleaner in it to make sure. Then pull off the bigger hose coming off your intake tube on the passenger side of the engine and then spray some cleaner in there to clean out the AIV which may be contributing to your problem.

*PBucch* · 03-16-2007, 07:53 PM

Quote:

Originally Posted by PBucch

Id recommend checking your cap and rotor too.

Try this yet?

jakal · 03-17-2007, 01:06 AM

thanks, ^ im about to do that tomorrow w/ bro's...

jakal · 03-18-2007, 05:37 PM

UPDATES!!!!!..............

My car is still dead....What i did:

Cleaned the MAF, Clean air filter, 3 sets of new spark plugs (bosce Plantinum, and NGK or something), new Fuel filter, new Valve cover gasket...STILL same problem...Even checked the rotors, and right now, are checking the wires connected to the MAF....ANYONE know wtf is going on?!!?!?

Problem (for ppl who wanna know again):

The car cannot idle. When i start it up, it tries to idle, but ends up dying. Sometimes it idles and sounds normal, but eventually it dies. When you drive, it bucks and chokes. It seems like the clutch is slipping, but i doubt it. The problem stops SOMETIMES if you rev the car really high (4k-4.5k). Shakes violently when bucking. It sounds like the car is farting constantly. <-- Suriously, that's how it sounds....

drftwerks · 03-18-2007, 06:14 PM

timimng and vac leak

ilovecoupes · 03-18-2007, 06:15 PM

Quote:

Originally Posted by jakal

When you drive, it bucks and chokes. It seems like the clutch is slipping, but i doubt it.

yeah your right, if it was the clutch you would notice a big diffrence in power and shaking. when you put it in gear, compared to reving it up in neutral. Neutal would be much smoother

kandyflip445 · 03-18-2007, 07:15 PM

Why did you replace the valve cover gasket?

Make sure you have power to the fuel pump and make sure it is priming when you turn the key to the ON position. Not the start position. You should hear a motor in the back for about 3 seconds.

hellbilly1342 · 03-18-2007, 07:51 PM

could be clogged cat or exhaust

jakal · 03-19-2007, 06:33 AM

^ im running no exhaust ><

Why i buy a head cover? I dunno, my brother wanted to try to see if that was it b/c it "looked" like 2 of my spark plugs were wet, but i dun think they were.

**btw, when we took out the spark plugs, why the hell are they like CHARCOAL black. It burnt? no pics in the manual we are using. ***

I think it might be the vacuum, i dun know...im at school right now, and 2 of my brothers are trying to fix the problem.

updates soon.

chibo · 03-19-2007, 11:03 AM

Charcoal black would indicate rich, white is lean. Check for leaks behind the MAF; I shot a blockoff plug out of my intake tube after the MAF one night and it would almost give me whiplash.

jrocslider · 03-19-2007, 11:08 AM

bosch is trash.... but back on topic check that fat vaccum line behind the head sittin on the firewall... my car was doin that after sum dude ran a stop sign and hit me. i got home and it was doin the same thing. i saw that my vaccum line was disconnected and when i put it back together it was idling perfect again. idk it could be sumthin a lil more serious but try that if u havent yet

Okinawandrifter87 · 03-19-2007, 11:21 AM

possibly check and see if your iacv is dirty? i dunno if itd help but im just throwing you all options and advice possible to get it out there

03-16-2007, 12:30 AM	#1
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	okay, WTF happened? Broken Tranny? or huh?!? Okay, now here's the problem, i was driving around....and like all of a sudden, while in 3rd gear, my car starts stalling, then like it starts jumping, and reving around 3-4k RPM....The car shuts off by itself while i pull over...then i start it back up....ez!....Hmm....WTF? i get back on the road and the car just stalls and revs and jumps....i cant go pass 3.5k RPM....the car just shakes, as if there's no power....well thank god i made it home from walmart, but i could only go like maybe 40 mph MAX....anyone have a clue wtf happend? When i parked my car, i rev'd it, but all it did was shake around 3.5 rpm....i dun dare go pass that, so here i am, typing away at 2:24 AM....Thanks in advance for the help.... Yang

03-16-2007, 12:46 AM	#2
s13speeddrft Zilvia Member Join Date: Mar 2005 Location: orange county/ davis Age: 37 Posts: 235 Trader Rating: (1) Rides Gallery: s13speeddrft Feedback Score: 1 reviews	can it go above the 3.5 k or did you just stop revving since it was bucking? __________________ http://s165.photobucket.com/albums/u63/ajhartma/ 1990 240sx hatch....currently monster truck status, with sunken battleships. Junkyard Scavenger

03-16-2007, 12:50 AM	#4
zugoi Zilvia Junkie Join Date: Aug 2003 Location: Bay area Posts: 560 Trader Rating: (0) Feedback Score: 0 reviews	When you rev the car with the clutch down is the problem still there or when you take it out of gear into nutrel. If its still there it sounds like it could be mafs. If the problems only happen when you in gear i guess its bad tranny. __________________ Drunk posting FTW!

03-16-2007, 01:03 AM	#6
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	Maf. Mkay? __________________

03-16-2007, 01:14 AM	#8
zugoi Zilvia Junkie Join Date: Aug 2003 Location: Bay area Posts: 560 Trader Rating: (0) Feedback Score: 0 reviews	check vacuum lines so see if there is vaccuum leak and mafs. __________________ Drunk posting FTW!

03-16-2007, 12:48 AM	#3
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	well, since when i was driving, i wouldnt go pass 3.5...i bucked around 2.5-3.5....

03-16-2007, 12:54 AM	#5
McRussellPants Nissanaholic! Join Date: Oct 2005 Location: Austin, Tx Posts: 2,168 Trader Rating: (0) Feedback Score: 0 reviews	Gigantic Vacuum leak.

03-16-2007, 01:09 AM	#7
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	it happens when im in gear only while driving....if i sit in park w/ e-brake and rev, same thing happens

03-16-2007, 01:16 AM	#9
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	Sounds like your car is in limp mode. And that the maf isn't working properly. So I would suggest checking your maf. Could be a vacuum leak but I'm pretty sure it's your maf. __________________

03-16-2007, 01:18 AM	#10
Bryants95240sx Zilvia Addict Join Date: Feb 2004 Location: alabama Age: 37 Posts: 668 Trader Rating: (0) Feedback Score: 0 reviews	vacuum leak or mafs __________________

03-16-2007, 02:58 AM	#12
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	okay, i think it's the MAF...anyone know how to clean the Maf? iso a new one....if anyone has one, pm me! ull c a thread up in WTB too.....

03-16-2007, 03:26 AM	#13
ROTTEN EGG Leaky Injector Join Date: Mar 2007 Location: SF Bay Posts: 110 Trader Rating: (0) Feedback Score: 0 reviews	just get a can of intake cleaner. i used some brake cleaner but that isnt the best idea.

03-16-2007, 07:04 AM	#14
PBucch Premium Member Join Date: Jun 2004 Location: miami beach Age: 40 Posts: 1,039 Trader Rating: (0) Rides Gallery: PBucch Feedback Score: 0 reviews	Id recommend checking your cap and rotor too. __________________ section ef&ec changed my life

03-16-2007, 10:26 AM	#15
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	okay....now my car wont stay on after i started up the engine. It'll turn, then turn on, but right when the car starts, it starts bucking, and im not even reving, just my foot on the damn clutch....it'll rev High to low (1.5-.5) then once it reaches 0, it shuts off....i cant get it to stay on....just an update....and im kinda noob to this, so where is my MAF located? lol....is it the thing that's connected to my Air filter? cause it sure looks like it...lol...srry for nooby ? there...

03-16-2007, 10:29 AM	#16
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	Woah. Don't use brake cleaner or anything else. That's a good way to destroy your maf. Use maf cleaner; can be found as an aerosol from your local auto parts store.. If you can't find that, then pick up some contact cleaner. That's the proper way to clean it. The maf is the piece that screws into the side of your airfilter box. It's held on my four screws and has a plug going into it. Unscrew the maf then unclip the electrical plug so you can clean the maf. __________________

03-16-2007, 10:31 AM	#17
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	yeah i got some, i just picked it up at autozone...first customer, YEAH! anyone know why my car is starting up so weird??

03-16-2007, 12:40 PM	#18
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	okay, now my car wont start.....it'll crank, but it wont start...it just died....and umm...i took off my air filter, and like looked at the MAF, and it was pretty clean to me, even the air filter was clean, maybe a bit of pollen here n there, but i just blew it off....i'm going to check the vacuum next, but i have a feeling it's not that....anyone else have an idea????

03-16-2007, 04:39 PM	#19
kandyflip445 Post Whore! Join Date: Sep 2002 Location: Arden, NC Age: 40 Posts: 4,460 Trader Rating: (1) Rides Gallery: kandyflip445 Feedback Score: 1 reviews	Whenever my MAF was dirty I couldn't tell by looking at it. Just spray some air intake cleaner in it to make sure. Then pull off the bigger hose coming off your intake tube on the passenger side of the engine and then spray some cleaner in there to clean out the AIV which may be contributing to your problem. __________________ My 240 vBgarage

03-17-2007, 01:06 AM	#21
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	thanks, ^ im about to do that tomorrow w/ bro's...

03-18-2007, 05:37 PM	#22
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	UPDATES!!!!!.............. My car is still dead....What i did: Cleaned the MAF, Clean air filter, 3 sets of new spark plugs (bosce Plantinum, and NGK or something), new Fuel filter, new Valve cover gasket...STILL same problem...Even checked the rotors, and right now, are checking the wires connected to the MAF....ANYONE know wtf is going on?!!?!? Problem (for ppl who wanna know again): The car cannot idle. When i start it up, it tries to idle, but ends up dying. Sometimes it idles and sounds normal, but eventually it dies. When you drive, it bucks and chokes. It seems like the clutch is slipping, but i doubt it. The problem stops SOMETIMES if you rev the car really high (4k-4.5k). Shakes violently when bucking. It sounds like the car is farting constantly. <-- Suriously, that's how it sounds....

03-18-2007, 06:14 PM	#23
drftwerks Nissanaholic! Join Date: Mar 2004 Location: california Posts: 2,343 Trader Rating: (1) Feedback Score: 1 reviews	timimng and vac leak __________________ giantroboteyes.wordpress.com/

03-18-2007, 07:15 PM	#25
kandyflip445 Post Whore! Join Date: Sep 2002 Location: Arden, NC Age: 40 Posts: 4,460 Trader Rating: (1) Rides Gallery: kandyflip445 Feedback Score: 1 reviews	Why did you replace the valve cover gasket? Make sure you have power to the fuel pump and make sure it is priming when you turn the key to the ON position. Not the start position. You should hear a motor in the back for about 3 seconds. __________________ My 240 vBgarage

03-18-2007, 07:51 PM	#26
hellbilly1342 Join Date: Oct 2006 Location: fullerton Age: 52 Posts: 14 Trader Rating: (0) Feedback Score: 0 reviews	could be clogged cat or exhaust

03-19-2007, 06:33 AM	#27
jakal Leaky Injector Join Date: Sep 2006 Location: Savannah, GA Age: 37 Posts: 125 Trader Rating: (0) Feedback Score: 0 reviews	^ im running no exhaust >< Why i buy a head cover? I dunno, my brother wanted to try to see if that was it b/c it "looked" like 2 of my spark plugs were wet, but i dun think they were. btw, when we took out the spark plugs, why the hell are they like CHARCOAL black. It burnt? no pics in the manual we are using. * I think it might be the vacuum, i dun know...im at school right now, and 2 of my brothers are trying to fix the problem. updates soon.

03-19-2007, 11:03 AM	#28
chibo Zilvia FREAK! Join Date: Sep 2005 Location: Tempe and Scottsdale, Arizona Age: 37 Posts: 1,425 Trader Rating: (0) Feedback Score: 0 reviews	Charcoal black would indicate rich, white is lean. Check for leaks behind the MAF; I shot a blockoff plug out of my intake tube after the MAF one night and it would almost give me whiplash.

03-19-2007, 11:08 AM	#29
jrocslider Zilvia FREAK! Join Date: Dec 2005 Location: DownSouth Age: 38 Posts: 1,344 Trader Rating: (4) Rides Gallery: jrocslider Feedback Score: 4 reviews	bosch is trash.... but back on topic check that fat vaccum line behind the head sittin on the firewall... my car was doin that after sum dude ran a stop sign and hit me. i got home and it was doin the same thing. i saw that my vaccum line was disconnected and when i put it back together it was idling perfect again. idk it could be sumthin a lil more serious but try that if u havent yet

03-19-2007, 11:21 AM	#30
Okinawandrifter87 Post Whore! Join Date: Jun 2006 Location: Sacramento, CA Posts: 3,959 Trader Rating: (22) Feedback Score: 22 reviews	possibly check and see if your iacv is dirty? i dunno if itd help but im just throwing you all options and advice possible to get it out there