C32 AMG, C55 AMG (W203) 2001 - 2007

car loses power going up hills!!

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Old Oct 19, 2011 | 04:24 PM
  #1  
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2002 C32 AMG
car loses power going up hills!!

I dont know why but my cars been losing power right after i hit the hill. I have to literally floor it.
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Old Oct 19, 2011 | 06:19 PM
  #2  
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I'd have to say intercooler water pump my friend.
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Old Oct 19, 2011 | 06:32 PM
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2002 C32 AMG
Yea thats what i thought at first but as soon as i get back on the street the power kicks right back. Which is not right?

Last edited by doom239; Oct 19, 2011 at 08:53 PM.
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Old Oct 19, 2011 | 08:00 PM
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2002 W203 C32 AMG / 1997 Toyota Corolla AE110
When car going uphill and increase the engine load, made everything hot and over temp. If your IC pump gone, then cut your power.
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Old Oct 19, 2011 | 10:00 PM
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I have the same problem. I don't have to floor it but I do have to put quite a bit of pedal down. (Usually fairly steep hills around town, not so much on the freeway)

I don't think it's his Pump. I just changed mine about 2 months back. I've always had this issue also. I'm guessing he probably feels a jerk right before going up the hill too. (Torque converter)
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Old Oct 19, 2011 | 11:40 PM
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Originally Posted by Budget Baller
I have the same problem. I don't have to floor it but I do have to put quite a bit of pedal down. (Usually fairly steep hills around town, not so much on the freeway)

I don't think it's his Pump. I just changed mine about 2 months back. I've always had this issue also. I'm guessing he probably feels a jerk right before going up the hill too. (Torque converter)
Yes thats it!!. I get this small jerk I know its not my pump because I just installed the Johnson pump recently(4 months ago)
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Old Oct 19, 2011 | 11:43 PM
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Possibly the gas in the tank seeking level, away from the fuel sender?
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Old Oct 20, 2011 | 12:10 AM
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Fuel filter clog when trash shifts or trash in fuel tank or have you ever had tranny serviced?

Last edited by Ducatic230; Oct 20, 2011 at 12:21 AM.
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Old Oct 21, 2011 | 12:02 AM
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C32 amg
Had the same issue as well

Car had issues going up hills. It would jerk and shutter going up. Do you hear a slight grinding sound at certain times as you drive? In my case the trans died. I got maybe 1k miles out of it before it completely broke and had be towed. 4k repair.
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Old Oct 21, 2011 | 12:06 AM
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If he's having what I have (and I think he his) My cars maintenance is well up to date. Fuel filter has less than 8k on it tops. Trany flush already done about 12k ago.

No grinding has Her0 suggested. Just a jerk and loss of power. Once I gas it, it's fine. Honestly makes me want to punch the steering wheel. As of now I've just learned to deal with it.

I have a new CPS sensor on the way that's supposed to help with jerk. When I replace that, I'll report back and see how that helps.

With the exception of the CPS there's almost nothing left in the car to replace.
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Old Oct 21, 2011 | 12:22 AM
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2009 gmc sierra 1500, 2005 C55 AMG, 2007 SL55 AMG.
Tranny
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Old Oct 21, 2011 | 03:21 AM
  #12  
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I don't care what anyone says it's not the tranny. It can't be...I don't feel like shelling out for a new one lol *Denial*
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Old Feb 20, 2016 | 11:57 PM
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Has anyone thought to check their fuel pressure regulator? Was having the same problem on an old car of mine. Changed the fpr and worked great
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Old Feb 22, 2016 | 08:07 AM
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Originally Posted by Nick Baldwin
Has anyone thought to check their fuel pressure regulator? Was having the same problem on an old car of mine. Changed the fpr and worked great
dont know it was 5 years ago.
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Old Feb 26, 2016 | 01:57 PM
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Originally Posted by doom239
I dont know why but my cars been losing power right after i hit the hill. I have to literally floor it.
The MAP senses air mass and uses that to calculate the engine load for regulating fuel input, I'd have that out and give it a clean, if that don't work, swap it mate
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Old Mar 8, 2016 | 04:20 AM
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l had the same problem,changed both fuel pump and fuel filter, problem solved.
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Old Dec 29, 2021 | 11:03 PM
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GL450
I solved this similar issue of mine

After changing the spark plug, the issue was resolved.
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Old Mar 22, 2022 | 07:05 PM
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Originally Posted by samnping
After changing the spark plug, the issue was resolved.
What was the exact symptom,i have a 2006 cls55 at full throttle i feel like hesitationbor weak acceleration,at normal driving i dont feel anything
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Old Mar 22, 2022 | 09:10 PM
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Originally Posted by Endri55k
What was the exact symptom,i have a 2006 cls55 at full throttle i feel like hesitationbor weak acceleration,at normal driving i dont feel anything
Quick Update: I realise that there are two parts to this problem.

Changing spark plugs: the engine being very rev-vy! Love it! Yet there was a fuel-mixture error.

Cleaning the air-sensor: This was to resolve the error. After cleaning though, my engine was not as responsive yet better.
I suggest changing the air sensor.
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