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Thread: Complete Power Loss!
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06-20-2011, 12:25 AM #1
Complete Power Loss!
For several years now my car has had a slight blip around 2500 RPM, just a split second power loss. Almost unnoticable and nothing I was too concerned about. Over the course of last week however it has gotten drastically worse and is rapidly becoming un-drivable. In any gear, but most commonly third, it will randomly lose 95% of its power through all rpm ranges. When in first gear and it happens I cannot top 10 mph. My first thought was a bad coil pack or something interfering with the spark, however there is no chugging or misfire like sounds, just a instant and very smooth power loss. I have not been able to correlate this with wet or dry weather, or any other environmental factors. It is happening for increasingly long periods of time. Usually I can get it to go away by quickly working the pedal until the engine just comes back to life. I have msd coil packs, plugs and wires, engine appears to be healthy with routine maintainence. I am stumped, any ideas?
2000 Z28 Pewter, M6, T-Tops, K&N Intake, LS6 Manifold, SS Hood, MSD Ignition, Magnaflow Cat-Back, Stage 3 Clutch, Short Shifter.
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06-20-2011, 12:50 AM #2
clean the Maf, new plugs, wires, O2's
Black 00 SS M6, vert, #0540 408ci
DD 2014 Sierra All Terrain
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06-20-2011, 02:28 AM #3
- Join Date
- Nov 2006
- Location
- Indianapolis
- Age
- 61
- Posts
- 5,188
Black- 2000 WS6 6spd Hooker LT
Check your fuel pressure. Sounds like the pump is dying. It may be a dirty MAF, but usually this is a constant thing, not off and on. SES light on?
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06-20-2011, 03:33 AM #4
another question, when you say MSD ignition in your sig, are you talking about MSD coil packs?
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06-20-2011, 05:41 AM #5
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06-20-2011, 05:43 AM #6
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06-20-2011, 06:28 AM #7
msd coil packs, plugs and wires. they are not that old either, maybe 20,000 miles. And yes stock cats. Why would stock cats matter?
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06-20-2011, 06:31 AM #8
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06-20-2011, 06:41 AM #9
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06-20-2011, 06:53 AM #10
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06-20-2011, 06:55 AM #11
ses light is always on because I installed a manual override switch for the cooling fan and left out the resistor. I am going to advance today to check the codes. Also buying a fuel filter, and I will rent a fuel pressure gauge and I will clean the MAF. Do you guys really think the cats could be bad at 105,000?
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06-20-2011, 06:59 AM #12
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06-20-2011, 07:01 AM #13
Oh yeah and when my fuel pump died the car simply stopped but would idle some after sitting then die..
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06-20-2011, 07:07 AM #14
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06-20-2011, 07:13 AM #15
well if it is the cats then I guess I am forced to go get an off road y and pacesetters. What a misfortune! lol!
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06-20-2011, 07:15 AM #16
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06-20-2011, 07:17 AM #17
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06-20-2011, 12:04 PM #18
did this problem start after the MSD coil packs were put on the car? I have heard nothing but bad things about those things. My buddy had a problem with his car misfireing with those coil packs
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06-20-2011, 01:58 PM #19
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06-20-2011, 03:49 PM #20
The msd coils were on the car when I bought it unfortunatly. I replaced the Air Temp Sensor as the car was throwing code p0113 (Air temp circuit input too high) and a fuel pump. Havnt driven it yet, I will post up the results!
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