1987 Toyota Pickup Black Smoke Stalls

1987 TOYOTA PICKUP
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RIE
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  • 3 POSTS
[color=green][/color] :idea: I recently bought this pick up from my employer. It was running really good and then started acting like it was running out of fuel like it had been doing on and off lately but not to this extreme. (Fuel gauge does not work) So I filled it up. It spit and sputtered and coughed black smoke and then ran ok again. Went about 4 blocks turned off and then it did it again. Will start, sputter black smoke, and die. New tune-up/timing seems on/clean older motor of approx. 245,000 miles/22R/misses on 2/auto w-overdrive/no leaks. Replaced new cap, new cap had grooves in 2 of the knubs. Did not replace new rotor though. Can anyone HELP me? :roll: :?
Mar 8, 2006 at 6:55 AM
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FISHERMAN
  • ✓Experienced Mechanic
  • 937 POSTS
its running to rich..
check the carburetor..
Mar 8, 2006 at 12:11 PM
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RIE
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:) Thanks Fisherman. I will give it a try as soon as I can get back out to it. Let you know if it makes a difference. THX again :!: :)

Rie
Mar 9, 2006 at 4:53 AM
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PLAINMAN98
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there is a neoprene flap with a spring that pushes extra fuel when you need it. it is vacuum actuated... when this diaphragm perforates, it leaks into the vacuum system and makes you run rich. I got mine from the dealer for ~25.00 stopped the run rich problem, no more black smoke.

Good Luck!
Mar 18, 2006 at 2:01 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Its soung like a choke plate is binding or the Vacuum break is not pulling it to the initial point creating the loading of fuel.

You need to adjust the choke and fast idle cam
Further check out the Thermostatic Air Cleaner system Hot and Cold position.

22R Engine, easily converted to 22RE set up
Mar 19, 2006 at 2:15 PM
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RIE
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thank you very much rasmataz! i will try it out!

[quote="rasmataz"]Its soung like a choke plate is binding or the Vacuum break is not pulling it to the initial point creating the loading of fuel.

You need to adjust the choke and fast idle cam
Further check out the Thermostatic Air Cleaner system Hot and Cold position.

22R Engine, easily converted to 22RE set up[/quote]
Mar 19, 2006 at 4:22 PM
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Suggested Repair

The engine is running too rich. Check the carburetor, including the vacuum-actuated neoprene diaphragm, which can leak fuel into the vacuum system if perforated. Also check for a binding choke plate or a vacuum break that is not opening the choke, adjust the choke and fast-idle cam, and verify the thermostatic air cleaner moves between hot and cold positions.

Conversation Summary

A 1987 Toyota Pickup with a 22R engine starts, sputters, blows black smoke, and dies; it also misses on cylinder 2 and the fuel gauge does not work. A recent tune-up and distributor cap replacement did not fix it. Replies say it is running rich and recommend checking the carburetor, a perforated vacuum diaphragm, choke and vacuum-break adjustment, the fast-idle cam, and the thermostatic air cleaner.

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