W124 jerking during high speed acceleration

[badshot1uk]

Hi,

My old w124 te runs lovely. but occasionally feels like shes being strangled during high speed acceleration (from 3rd to 4th gear).

It gets into 4th gear ok then seems to hesitate.
Eventually with a persistant lead foot, she seems to sort of clear her throut and fly up to silly speed!

Its having a big service tommorow so it may show up on the diagnostic machine, but im hoping its the fuel filter cloging up, or maybee plugs.

I spose it might also be the ht leads breaking down, but im not sure what else it could be?

Any help much appreciated.

Cheers

Paul

 

[Brabus3.6]

Could be due to blocked airways, very heavily clogged air filter perhaps. You could also look under the air filter housing and clean out any crap that may have acquired in the throttle body. This should also help head for a steady idle too!

 

[grober]

Sounds like an ignition misfire problem- plugs leads-coil -etc

 

[badshot1uk]

Sounds like an ignition misfire problem- plugs leads-coil -etc

Thanks chaps,

I think I have found the problem. The sixth ht lead has two male ends and the car is running 3 different types of spark plug

I had an indipendent do a big 36000 mile service today and this is just the begining