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 Post subject: Hesitation
PostPosted: Mon Nov 18, 2019 8:05 pm 
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LE Member

Joined: Sun Nov 25, 2018 9:12 pm
Posts: 6
Year and Trim: 2000 ssei
Saturday I went on a road trip. After two hours on the highway and another have in stop ago traffic. I park the car shut it off. then realize I need to move over a little bit. Get back in start it up. Starts right up but when I go to hit the gas it bogs and run ruff. Like it’s flooded almost. After slowly feathering the gas it seemed to clear out. Came back after a couple hours and it ran fine. It’s a 2000 ssei. New Gm coils, icm and fuel regulator. All Gm parts. I’m stumped. No codes either.


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 Post subject: Re: Hesitation
PostPosted: Tue Nov 19, 2019 11:55 am 
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SLE Member
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Joined: Sat May 04, 2013 2:17 pm
Posts: 65
Year and Trim: 01 SSEI (black)
00 SSEI (green)
How'd the exhaust smell? Any smoke? Does the car consume coolant? Has the intake manifold gasket been replaced at any point?

It's a shot in the dark but intake gaskets are a bit notorious on these. Wonder if you burnt off some coolant upon starting and then it cleared up. A leakdown test could help diagnosis if you think this is a possibility (unfortunately these intake gaskets can be a bit finicky and the heat cycle of the engine can affect whether it's letting coolant into the the intake runner or not).


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 Post subject: Re: Hesitation
PostPosted: Tue Nov 19, 2019 12:05 pm 
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Certified Bonneville Nut
Certified Bonneville Nut
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Joined: Mon May 10, 2010 6:11 pm
Posts: 9141
Location: Chicago, IL
Year and Trim: 2003 SLE
As mentioned above, check your coolant level and how your oil looks.

Did you ever clean your IAC or MAF sensor on the throttle body?

_________________
-Car Guy Carl
"Penelope" - 2003 SLE - 200k Miles
"Sydney" - 2000 Honda S2000 - 70k miles
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 Post subject: Re: Hesitation
PostPosted: Tue Nov 19, 2019 2:07 pm 
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LE Member

Joined: Sun Nov 25, 2018 9:12 pm
Posts: 6
Year and Trim: 2000 ssei
Intake gaskets are updated to new aluminum ones, coolant Ellbows also. Doesn’t go through any coolant. Coolant is full and hasn’t moved. Car does use a quart of oil in between oil changes. Iac and maf were replaced a year ago. No smoke out of the exhaust. Didn’t notice any coolant smell. This is why I’m stumped


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