doom239

I dont know why but my cars been losing power right after i hit the hill. I have to literally floor it.

msheredy

I'd have to say intercooler water pump my friend.

doom239

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?

Wilsophia

When car going uphill and increase the engine load, made everything hot and over temp. If your IC pump gone, then cut your power.

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)

doom239

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)

03'55AMG

Possibly the gas in the tank seeking level, away from the fuel sender?

Ducatic230

Fuel filter clog when trash shifts or trash in fuel tank or have you ever had tranny serviced?

Her0

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.

Budget Baller

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.

Ducatic230

Tranny

Budget Baller

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*

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

insame1

dont know it was 5 years ago.

Doozer

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

Sickooli

l had the same problem,changed both fuel pump and fuel filter, problem solved.

samnping

After changing the spark plug, the issue was resolved.

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

samnping

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.