I wanted to ask if it was common for high mileage 240's to have hesitation when you start up cold. Meaning, when I start up from being cold, the motor cranks up fine...but a when I take off, the car sometimes hesitates between first, second, and sometimes third. Its somewhat annoying, but after it comes up to normal operating temperture, it never happens. Is this a common problem with this cars with 90k+ with a stock motor? Is it something fairly inexpensive to fix...possibly by changing out wires, plugs, etc? I was going to purchase a Chiltons for the stock motor, but I plan to swap it out within a few months. Im not too familiar with this motor yet so Im searching for some freebie help . If its something more than routine maintence, then I'll be off to pick up some manuals. Thanks guys.

 

hrmm I had that same problem but then I disconnected my o2 sensor and it stoped.. so your o2 sensor might be bad but I dunno

 

i used to have that problem when i used low octane gas....or got gas from thoes lil mom and pop stores....

 

it happens to me too. my fix: blip the gas between gears untill it warms up.

 

so you mean possibly there's hesitation in low RPM (from 1000-3000)?

I think it's fairly common.

 

im having the same problem, i guess it could be the gas sense i put in 87 this week >not paying attention...but my exaust is clogged also so i have a little more of a problem

 

actually I think it was the o2 sensor...though I havent thrown any codes...I unplugged it and so far so good...but I have to wait until tommorrow morning when its completely cold to find out.

 

i just saw this thread and thought i'd try it out on mine because i was having the same problem. well it worked just fine. however, i am curious if having the o2 sensor disconnected will have any other effects on the car.

 

I think an 02 sensor if mainly used for emissons purposes only...but Im not 100% sure. Might have something to do with the fuel as well.

 

ahah yeah.

it gets the mixture more stoic