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 pulsey accel during WOT

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sketchydelux
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sketchydelux

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pulsey accel during WOT Empty
PostSubject: pulsey accel during WOT   pulsey accel during WOT EmptyFri Dec 14, 2007 7:44 pm

95 riv sc 160k mile about 1k since i bought it.

its has not always had this problem

from a full stop i jump on the pedal i start to feel it making boost but it stutters

when im looking under the hood the pully tensioner bounces and makes a chipmunk sound - is this the problem

my only other thought is it might be traction control (i cant tell wither its on or not)

any input would be HIGHLY appreciated i wub this car confused
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AA
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AA

Name : Aaron
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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyFri Dec 14, 2007 7:56 pm

How old are the ignition wires, and what kind are they?

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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sketchydelux
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sketchydelux

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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyFri Dec 14, 2007 8:11 pm

they where replaced 20 k ago according to documentation they are original issue

i looked at them and they look in good condtion could this be related to the coil packs?


whats the chipmunk about? non related?
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sketchydelux
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sketchydelux

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pulsey accel during WOT Empty
PostSubject: i like new tools   pulsey accel during WOT EmptyFri Dec 14, 2007 11:54 pm

9 bucks yay pulsey accel during WOT Apo_t71240

i wish i could find one of these pulsey accel during WOT T75708
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albertj
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albertj

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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptySat Dec 15, 2007 10:34 am

Sounds like your guess of a weak pulley tensioner may be right. teach

They are not that tough to install - try getting one from a NAPA store. Check prices on rockauto.com. Should be replaced every so often. I have heard of the need to shim them to make the pulley straight but have *never* had to do that.

My pulley tensioner does not bounce at all.

I would check it out. What I would do is remove the belt (using a ratchet wrench turn the tensioner so as to let up on the belt and slip it off) and turn the pulleys (not just the tensioner pulley) by hand to see if one is binding. It *might* be that you have an idler pulley that is binding and ready to fail. And when it binds it messes with the tensioner. So if you find an idler pulley binding, replace it, because if it fails it sends shrapnel (pieces of the pulley and pieces of the belt) all over that side of the engine compartment, and the shrapnel can cause a bunch of other goofy problems. Happened to me once. Yuck. poop

Albertj
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AA
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AA

Name : Aaron
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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptySat Dec 15, 2007 11:37 am

I agree, your tensioner probably needs replaced. Mine makes the same "chipmunk" sound. It's been doing it for a few months; it comes and goes, usually barely audible.

However, that doesn't explain the pulsating acceleration. It still sounds ignition related. If the wires are new and OEM, and you know this for fact, it could be the coils or a spark plug. FYI, you can't tell a wire is bad by looking at it. Mine still looked new at 100k when one failed.

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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http://www.cardomain.com/ride/657082/4
BillBoost37
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Location : Enfield CT
Joined : 2007-11-28
Post Count : 769
Merit : 25

pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyMon Dec 17, 2007 7:56 am

AA wrote:
However, that doesn't explain the pulsating acceleration.

It might. If the belt is slipping in spurts as the tensioner bounces the charger could also be doing the same.

I'm in on checking wires and plugs though.
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AA
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AA

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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyMon Dec 17, 2007 9:09 am

It depends on which tensioner is bouncing of course. My accessory drive is the noisy one.

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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http://www.cardomain.com/ride/657082/4
turtleman
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turtleman

Name : Codith
Age : 32
Location : Villa Park, IL
Joined : 2007-02-08
Post Count : 3647
Merit : 135

pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyMon Dec 17, 2007 11:14 pm

Is it pretty severe pulsing like almost where its like your letting off the gas completely or just a little bit?

If it's severe, I've found it to usually be ignition related but it might not necessarily be secondary voltage, but more likely.. I had that kind of problem when my coil(s) went bad and also when one of my PCM to ICM wires was intermittently shorting/opening so that's why I include the electronic portion.

If I were you, I'd test the wires with a meter for resistance and wiggle them around while youre doing it, definitely have a look at the plugs. If those two seem good, what I would do is buy 1 OEM coil and trial it in one at a time until you hopefully isolate the bad one. It could be more than one thats bad but it's unlikely that two OEM coils would go at the same exact time.

I would then check out the wiring related to the ICM.
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sketchydelux
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sketchydelux

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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyTue Dec 18, 2007 9:38 pm

checked the front 3 wire seam fine too much snow on the ground to wanna check out the others


best of all , now my first gear is slipping real bad. think im going to limp the thing until i find a suitable 96>

thanks for the feedback
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sketchydelux
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sketchydelux

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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyFri Jan 11, 2008 2:15 pm

does anybody know the procedure of prperly installing and adjusting the pully tensioner?
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BillBoost37
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Location : Enfield CT
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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT EmptyMon Jan 14, 2008 9:07 am

There's no adjusting to be done. Just install. I forget if that's a simple one bolt tensioner. I think it is.
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pulsey accel during WOT Empty
PostSubject: Re: pulsey accel during WOT   pulsey accel during WOT Empty

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