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What would cause my car to skip at low RPM's

  • Thread starter Thread starter davmacdon
  • Start date Start date Jun 13, 2004
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davmacdon

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Aug 23, 2003
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Jun 13, 2004
#1
  • Jun 13, 2004
  • #1
I have a 94 GT vert and have a bad bad skipping/missing problem. It feels like all power to the plugs is coming and going. It completely loses power and bucks badly. It only seems to happen below 2000 RPMS. If you keep it reved up it seems to be fine. It started little by little over 3 days and now is not drivable. I have replaced plugs, wires, cap and rotor. Can a coil or condenser cause a problem like this.


Any help would be great,
Dave
 
T

theorama2000

Founding Member
Jan 27, 2002
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orange county ca
Jun 13, 2004
#2
  • Jun 13, 2004
  • #2
hey, im piggybacking on this thread, my car is doin a similar thing, but mine is just a slight miss/skip under 2000 rpms, its not bad, and i just replaced my clutch 4 days ago so im kinda worried about a brand new clutch slipping?
 
M

mr_tinkertrain

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Dec 14, 2003
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Hot Springs, AR
Jun 13, 2004
#3
  • Jun 13, 2004
  • #3
subscribing i have same type of problem. heard it could be vacuum leak but i couldnt find a leak on my car
 
C

CivicEater

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Jan 29, 2004
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Jun 13, 2004
#4
  • Jun 13, 2004
  • #4
Same problem here somone help.......
 

ironheart1

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Mar 13, 2004
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Connecticut
Jun 14, 2004
#5
  • Jun 14, 2004
  • #5
I am having a similar issue.

I have just replaced and installed: Spark plugs, plug wires, cap and rotor. I also changed the oil. My friend also adjusting my timing.

The car is running AWFUL. I have to downshift to go up hills, it bucks wildly and randomly, and I got by my girlfriend's stock '99 Mitsu Mirage. It did NOT have this problem at all prior to the work mentioned above.
 

davmacdon

New Member
Aug 23, 2003
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Jun 14, 2004
#6
  • Jun 14, 2004
  • #6
OK, here are the codes 332 EGR Valve intermittently stuck. (Got that one before.)

The new one is 212 or IDM circuit failure / SPOUT circuit grounded. What is the 212 code telling me and what can I do about it?
 
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CivicEater

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Jan 29, 2004
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Jun 14, 2004
#7
  • Jun 14, 2004
  • #7
Bump
 

Supaman

Founding Member
Aug 11, 1998
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Hawaii
Jun 15, 2004
#8
  • Jun 15, 2004
  • #8
Mine does the same thing also. I changed the oil, plugs, wires,, tps, o2 sensors and also checked the timing. I have no vacuum leaks. Still does it but it's not as bad as before. Any ideas?
 

FrdMustangCpe

New Member
May 27, 2004
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Sin City, NV
Jun 15, 2004
#9
  • Jun 15, 2004
  • #9
same problem with mine. It goes between 1000-1500rpm. if i rev it one to 2k, its fine for a few lights or so and it does it again.
 

davmacdon

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Aug 23, 2003
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Jun 15, 2004
#10
  • Jun 15, 2004
  • #10
I tested about everything you could imagine ICM, TPS, idle air sensor, MAF, vacum, connectors and coil. Problem is still there. I guess I am going to take the plugs out and check them out(again). My 91 lx 5.0 never had a ghost problem like this.

Dave
 

blkstangman88

New Member
Apr 6, 2004
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Jun 16, 2004
#11
  • Jun 16, 2004
  • #11
still got the stock alternator? could be a bad charging problem....just an idea.....coil could be it also, thats what mine did for awhile till i changed it.
 
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CivicEater

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Jan 29, 2004
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Jun 16, 2004
#12
  • Jun 16, 2004
  • #12
so when your coil went bad you had a bucking problem around 2k and down? any codes?
 

Supaman

Founding Member
Aug 11, 1998
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Hawaii
Jun 16, 2004
#13
  • Jun 16, 2004
  • #13
I put on a 200 amp alternator and I also put an ignition system on and still has a slight bucking, hesitation feeling.
 

Venom4.6

Founding Member
Jun 30, 2002
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Saint Louis, MO
Jun 16, 2004
#14
  • Jun 16, 2004
  • #14
davmacdon said:
OK, here are the codes 332 EGR Valve intermittently stuck. (Got that one before.)

The new one is 212 or IDM circuit failure / SPOUT circuit grounded. What is the 212 code telling me and what can I do about it?
Click to expand...

Here's a picture of the SPOUT jumper. It's the litte grey cube next to the MAF. Check to make sure it's there and also inspect the wiring.
Without the SPOUT jumper circuit, the computer cannot advance the timing. You are basically running on base timing right now.
 

Silver95Stint

New Member
Oct 28, 2003
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England
Jun 16, 2004
#15
  • Jun 16, 2004
  • #15
Hate to piggyback on the piggybackers, but my stang has had the same problem for a while now. The code is 332 EGR too low or something like that, there are no leaks and I replaced the EGR solenoid and EGR valve and it's still there. It pulls pretty good until I reach about 4500rpms and then it starts missing and bucking. It's been driving me crazy and if anyone out there in stangworld knows what this is, help a brotha out.
 

blkstangman88

New Member
Apr 6, 2004
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Jun 17, 2004
#16
  • Jun 17, 2004
  • #16
mine has a piggy back problem at like 1k rpms, but nother any higher, mine just from luging around somtimes.......when my coild was going out it was like bursts.....cruising through town at low rpms, the car would just jerk and buck....changed it to a new one and it works fine
 

davmacdon

New Member
Aug 23, 2003
61
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Jun 17, 2004
#17
  • Jun 17, 2004
  • #17
I changed my plugs today from Bosch to Motorcraft and still had the misfire/bucking below 2000 RPM. Whan the car warmed up it started to smooth out and idle right, and the tach stopped jumping around to. Where should I go next? New coil, PIP(sender in dist) or ICM?

Someone please advise. I dont have much hair left to pull out.

Thanks,
Dave
 
5

5.0guy

Member
Apr 17, 2004
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MI
Jun 17, 2004
#18
  • Jun 17, 2004
  • #18
my spout connector is right by my distributor..at least something that looks just like it is.
 

Venom4.6

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Jun 30, 2002
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Saint Louis, MO
Jun 18, 2004
#19
  • Jun 18, 2004
  • #19
5.0guy said:
my spout connector is right by my distributor..at least something that looks just like it is.
Click to expand...

The 94-95 has it next to the MAF which is what he has.
 
5

5.0guy

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Apr 17, 2004
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Jun 18, 2004
#20
  • Jun 18, 2004
  • #20
gotcha
 
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