dead spot around 2k **problem solved** - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-27-2007, 07:35 PM   #1
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Default dead spot around 2k **problem solved**

i was wondering while driving today where is the powerband on our cars? I have my 93 se and it always seems to have no power at 2k. The engine runs like a charm (rebuilt her 10k miles ago along with the tranny) other than that i have no complants about the car.

any ideas
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Old 03-28-2007, 02:08 AM   #2
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That'* just below the power peak in our cars. You may be in a funny spot between gears though.

If i try to give her the beans @ 35 it usually will stay in gear, and eventually get going good.
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Old 03-28-2007, 07:38 AM   #3
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Squirrelly.. check your MAF, TPS, and O2 readings. Could be the TPS had a sweet spot reserved for you.
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Old 03-29-2007, 06:53 PM   #4
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On my 1998 L36 I scan a heck of alot of knock reduction at 2000-2400rpm. I'm currently trying to tune that out in my spark tables.

I don't know if your Series I L36 would have the same knock issue as my Series II. Do you get knock when accelerating through that rpm range?

Also, being pre-OBD-II, I don't know how you'd go about fixing that up (other than to run higher octane gas).
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Old 04-03-2007, 12:26 PM   #5
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**update**

had some extra time in the shop so I gave the tb a bit of cleaning and wow what a difference. cleaned out all the dirt and grime and its like a new car. I took it for a spin down the block and I don't have the bogginess at 2k from before
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Old 04-03-2007, 12:35 PM   #6
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now i have to do this, i bet 186K of Grime and dirt is hurting my power also
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Old 04-03-2007, 12:47 PM   #7
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Had a lot of grime in my throttle plate when I did theintakes at 78k. Great improvement to clean it.
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Old 04-03-2007, 01:00 PM   #8
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Quote:
Originally Posted by bandit
now i have to do this, i bet 186K of Grime and dirt is hurting my power also
If I'm not mistaken Bandit, didn't you have a similar problem and it ended up being the EGR Valve?
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Old 04-03-2007, 01:08 PM   #9
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Quote:
Originally Posted by Maymybonneliveforever
Quote:
Originally Posted by bandit
now i have to do this, i bet 186K of Grime and dirt is hurting my power also
If I'm not mistaken Bandit, didn't you have a similar problem and it ended up being the EGR Valve?
Nope, mine was diffrent. but i bet after 186K, i bet its going to help
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Old 04-03-2007, 01:44 PM   #10
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This is why we frequently suggest a TB and sensor cleaning. Glad it fixed ya up Squirrelly..

Bad Badnit...bad...you should have cleaned by now.
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