Question about 1983 Toyota Pickup

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When the engine warms up it starts running rough and black soot comes out of the exhaust

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Oxygen sensor

Posted on Nov 19, 2009

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1 Answer

Black smoke from exhaust, rough idle, black soot on plugs


signs of a bad fuel pressure regulator-- the vehicle will run rough, the engine will not start ( usually in the mornings,) many times engine starts but stalls shortly after starting. a bad regulator can result in fouled plugs. replacement is only cure. 1- black soot on plugs-2-black smoke from tailpipe-3- running rough-4- stalling, good-day! repost if need be.

Aug 10, 2011 | 1994 Suzuki Sidekick

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Caravan runs very rough at start up when cold


have you installed new plugs lately,if so have someone check the Engine Coolant Switch,
this sensor tells the engine how cold it is so the computer knows what kind of fuel mixture it will need.
rich or lean

Dec 28, 2009 | 2002 Dodge Grand Caravan

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I have a 1983 toyota pick up truck with the 22r engine.The problem is it runs rough when it is idling and black soot is coming from the exhaust.I have a manual choke which works fine.I have put a new pvc...


It shouldn't run at all with the solenoid disconnected. That should be 'ON' when the engine is on, or it won't run. Maybe the solenoid circuit is dirty so that it only opens a bit, or the fuel it allows through is limited by a dirty passage. I wonder why the wires were disconnected in the first place. It shouldn't run if that is the case!

Dec 02, 2009 | 1983 Toyota Pickup

1 Answer

Engine trouble with my 1983 toyota pickup


Toyota engines have a built in TSTV- thermo controlled vacuum system where vacuum is applied to the choke system in various levels as according to the temp. of the engine. If the TSTV is faulty or if the vacuum pipes are incorrectly placed then you have a choke which is not opening up properly. Fuel is thus not burnt completely and due to the incomplete combustion there is a formation of soot on your exhaust. Try to get the choke to open up in relation to the temp of the engine. The fuel/air ratio alse needs to be checked ( idle mixture control) once you have the vacuum system working properly.

Nov 19, 2009 | 1983 Toyota Pickup

4 Answers

My 1983 toyota pickup runs rough and black soot come from exhaust


carb automatic choke sticking closed or your float setting too high causing flooding engine.

Nov 19, 2009 | 1983 Toyota Pickup

1 Answer

My question is this I have a 1983 toyota pickup truck with the 22R engine.About a week ago I pulled out ot my drive way and when the motor warm up it started to run rough and black soot was coming from my...


black soot is a running rich condition it's getting to much gas not enough air .. 14-1 ratio air to gas your carb rebuild needs to be rechecked for sticking float..

Nov 19, 2009 | 1983 Toyota Pickup

1 Answer

1983 toyota pickup truck runs rough when the motor warms up


It would appear that the Black smoke is unburnt fuel, meaning Spark or timing could also be out. Check you plug and point gaps. If you rebuilt the carby, float level is crucial also check the needle and set to ensure it is shutting off the fuel, if it is not shutting off, it will just flood the engine. Not sure what carby you have but I woud pull out the jets/power valve and replace them. Some carbys have a small ball bearing to control fuel, if that was lost that could be it. Pull up an exploded diagram of the carby and do it again. I know its time consuming, but it will be peace of mind. Good luck

Nov 19, 2009 | 1983 Toyota Pickup

1 Answer

99 escort SOHC engine. Idles rough at start up. Smooths out some when it warms up but still idles erratically and surges. Changed the plugs and put new air filter in, but no change. Plugs are fairly black...


If you can find the IAC valve(idle air control) on the throttle body-it should be replaced or try to clean..If you put in new plugs and they turn soot black in a short time period, you have other issues-possible internal engine,such as valve train problems, or a partial exhaust blockage, or the fuel your buying is not good...

Nov 08, 2009 | 1999 Ford Escort

1 Answer

1992 gmc sierra turbo diesel starts and idles fine until warm up


It's time for a Italian tune up!

The blue smoke can be one of two thing.

oil drop from the valve stem (from engine head to cyclinders)
or
diesel soot collect inside the exhaust system.

===
I will take a 5-10 minutes high rpm (not redline) ran on the highway.
Pay close attention to the rear view mirror and look for black diesel soot.
=== I will use Diesel Cleen or similar product to condition the fuel. (keep moisture down)
Use the recommended amount of SEAFOAM oil additive to condition the valve stem seal/rubber parts.

I can not rule out excessive blown by.
Can you get a diesel compression tester?
When was the last valve adjustment?

Please post the actual odometer on the engine and I will follow up on it.

Apr 21, 2009 | 1992 GMC Sierra K1500

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