HAHAHAHA
Thanks for the tips. Will be on it this weekend.
Trampas wrote:
KAleb,
First check the economy gauge and make sure it is going into the red, that
is the intake is reaching 0" of vacuum. On the W126 the throttle linkage is
spring loaded such that if the throttle plate sticks and does not open all
the way the gas pedal will still feel normal and go to floor but the economy
gauge will not go into red. I had a 560SEL that did this after I washed
engine and at first I thought Cat or Fuel filter.
To check catalytic converter I will often remove O2 sensor and drive car.
Actually I have a pressure gauge with an adapter for the O2 sensor such that
I can measure back pressure.
The catalytic converter can also fall apart and plug it's self up. Thus it
can happen rather sudden.
Now if the Cat plugged up then after you replace you will want to check
emissions to make sure engine is tuned correctly. I usually monitor O2
sensor to determine if engine is running rich or lean.
A couple more diagnostic steps may help you:
#1 Check economy gauge for going fully in the red. If not check throttle
linkage and for dead animals in intake.
#2 at idle have some one rev up engine, then shoot a little carb cleaner in
intake. If engine revs high you know you are not getting enough fuel, and
most likely not Cat.
#3 I will give you $500 for the car and take my chances... I thought others
would like that...
Trampas
--
Kaleb C. Striplin/Claremore, OK
89 560SEL, 87 300SDL, 85 380SE, 85 300D,
84 250 LWB, 83 300TD, 81 300TD, 81 240D, 81 240D,
76 450SEL, 76 240D, 76 300D, 74 240D, 69 250
http://www.striplin.net
