Surging Rpm On Hard Acceleration

[daver123]

Ok guys here's a tricky one. In second gear, on a hard acceleration, especial under load like on an incline, the rpm starts to surge at around 3000. The effect is as if i were to be accelerating an then let off the gas and punch it again repeatedly until i hit 6000, about 10 surges on the way up to 6000. I think it might be a fuel issue but im not sure, what is your take on this one? Manual '95

[Kingman]

Hills+load+engine surging+manual transmission usually means a clutch slipping a little. Is it surging as in revving up without the speed increasing or cutting out/losing power?

Edited April 14, 2010 by Kingman

[adamzan]

Could also be the 02 sensor if it is old.

[Precise1]

I'd guess fuel filter, but have you run the ECU for fault codes yet? That's the best place to start.

 

B

[EarlFairweather]

Lol when I first read the topic title I was like whaaa? Isnt it normal for your rpms to go up when you stomp on it hehe.

 

 

Sounds like fuel related does it only happen on an incline?

[nige]

check your vacuum lines too

[daver123]

I have been busy the last few days so i haven't checked the ECU yet, but this problem occurs on flat ground too but most often and more noticeably on hills. the clutch is only 1.5 years old and i doubt that its slipping. O2 sensor and vacuum lines are also a good idea. That will give me something to tinker with on the weekend.