Chatter from engine bay.
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Chatter from engine bay.
The video camera picked-up too much noise so I'm not sure this video will help with my question.
Sometimes when I crank the car, I hear a rhythmic squeak. It sounded as thought I was coming from the alternator. My 98 did it too and a shot of WD-40 fixed it right up.
Today I installed my wideband O2 so I wanted to test it out. I nailed it in second from a low RPM and let it carry up until the car hit around 6,500 or 12.5:1 on the new gauge. I let out and came home.
I pulled into the garage and I have this chatter noise coming from the car. It seems to be coming from the alternator. I say that because the noise is focused right above it. A little to the left or right and it fades.
Thoughts?
Video
Sometimes when I crank the car, I hear a rhythmic squeak. It sounded as thought I was coming from the alternator. My 98 did it too and a shot of WD-40 fixed it right up.
Today I installed my wideband O2 so I wanted to test it out. I nailed it in second from a low RPM and let it carry up until the car hit around 6,500 or 12.5:1 on the new gauge. I let out and came home.
I pulled into the garage and I have this chatter noise coming from the car. It seems to be coming from the alternator. I say that because the noise is focused right above it. A little to the left or right and it fades.
Thoughts?
Video
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SOLD 6-17-06
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105
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thats an easy one. my 3g 130 did that after I put a new tensioner on. The 3g's have fans on the inside of the housing, is sounds like the fans on the inside are hitting the alternator housing. when I pulled mine off there was "play" in the shaft like a bearing broke or something. I just got a new one and then no issues. id try that.
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Thread Starter
I need a helmet.
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Could there be too much tension causing the alternator to do this?
I know of issues with the idler pulley on the 4.6 platform but the alternator going out in this way is new to me.
Could I rebuild it or should I get a new unit?
Can I still drive on it?
I know of issues with the idler pulley on the 4.6 platform but the alternator going out in this way is new to me.
Could I rebuild it or should I get a new unit?
Can I still drive on it?
__________________
SOLD 6-17-06
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105
Thread Starter
I need a helmet.
Joined: Nov 2004
Posts: 427
Likes: 0
Some are suggesting a tensioner or idler pulley. The noise goes away when it gets warm. Did yours?
__________________
SOLD 6-17-06
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105
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