Re: Help!

Maybe they broke a spark plug wire and it's only firing on 3 cylinders.
Check by removing each spark plug wire and if engine speed doesn't 
change that's it. Raise idle high enough to do this first.

Maybe the EGR valve is stuck open allowing exhaust gas to constantly 
flow into intake. Check vacuum line arrangemnet to hood sticker
Pete

--- In toyota-campers@xxxxxxxxxxxxxxx, "jerryccombs" <jerryccombs@...> 
wrote:
>
> I have a 1980 Toyota Dolphin with 45K on OD. I recentely had oil and 
> filter change, and now the motor will not idle.  I returned it to 
the 
> service people and of course, they said we did nothing to cause 
this.  
> It ran great before I took it there. The vehicle runs ok at 50 or 60 
> mph but will not idle for any period of time before the motor dies.  
I 
> have had many suggestions, vacum lines, cat.converter plugged up. 
> distributor cap, rotor, smog pump, etc:  When speed is decreased 
black 
> smoke emits from tail pipe.  I will appreciate any help.  Thanks  
> jerryccombs@...
>