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Old 01-28-2007, 05:10 PM   #1
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Default Bucking when lightly accelerating on an incline

Whenever I am lightly accelerating up an incline, the car bucks front to back. If I step on the gas, the bucking goes away. It also goes away if I let off the gas. Any ideas or help would be greatly appreciated.

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Old 01-28-2007, 05:14 PM   #2
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Sounds like a misfire that might be caused by plugs or plug wires.
Make sure the rear plug wires are not contacting the rear O2 sensor.

Pull one of the front plugs and check its condition. If you've never changed them, it'* time.
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Old 01-28-2007, 06:59 PM   #3
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Thanks Paul. I'll check them out.
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Old 01-28-2007, 07:11 PM   #4
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Default Re: Bucking when lightly accelerating on an incline

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Originally Posted by jhut33
Whenever I am lightly accelerating up an incline, the car bucks front to back. If I step on the gas, the bucking goes away. It also goes away if I let off the gas. Any ideas or help would be greatly appreciated.

2000 Bronze SSEI
How many miles on plugs and wires?

If over 60K miles that'* be my first visit. Replace with AC plugs per the manuals at the store (they had changed the plug number for my 98 when I went the last time) and use original quality wires. I happened to get Belden at NAPA but stick with standard wires.
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Old 01-28-2007, 09:06 PM   #5
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I have the same problem and they are telling me that it is the rear motor mount. Mine only does it when the supercharger kicks in to 1 psi. Is that the same thing that happens to you?
Can you guys tell me what would be the cause for this?
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Old 01-28-2007, 09:26 PM   #6
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Default Re: Bucking when lightly accelerating on an incline

Quote:
Originally Posted by jhut33
Whenever I am lightly accelerating up an incline, the car bucks front to back. If I step on the gas, the bucking goes away. It also goes away if I let off the gas. Any ideas or help would be greatly appreciated.

2000 Bronze SSEI
When your torque converter is locked up, you will feel every little problem your engine has if it'* running rough. When you step on the gas or let off of the gas, the torque converter disengages and you won't feel the sluggishness anymore. First thing to do is probably change plugs and wires to start with.
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Old 01-29-2007, 12:01 AM   #7
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Default Re: Bucking when lightly accelerating on an incline

Quote:
Originally Posted by jhut33
Whenever I am lightly accelerating up an incline, the car bucks front to back. If I step on the gas, the bucking goes away. It also goes away if I let off the gas. Any ideas or help would be greatly appreciated.

2000 Bronze SSEI
I had the exact same problem...only going up a hill (at first)....finally blew a code - misfire on #2... replaced the plugs and wires - fixed the problem. Only had 51k miles on them - but they were 5 years old.
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Old 01-29-2007, 04:44 PM   #8
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I am having the same problem and never could figure it out!

i have done the plugs,wires,gas filter,coil packs,cat converter to avail!

I have noticed on start up sometimes it sounds like it is chuging and can feel it to and when I turn the key to on not start it it sounds like a gurgiling sound from the rear end like the fuel pump sounds funny.

It sure seems like this chugging prob is more common than not! Sure wish someone knew what caused this?

Is there a fuel pressure regulator on our ssei ? Seems like it almost is not getting the right amount of duel maybe maybe not?
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Old 01-29-2007, 05:23 PM   #9
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This could also be a possible grounding issue at the battery area. Archon found a ground lug that is substandard.
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Old 01-29-2007, 05:36 PM   #10
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Will check right now after posting this.It sure would be nice if it was as simple as that!
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