Question about 1983 Toyota Pickup
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Posted on Jan 02, 2017
Have you pulled out the spark plugs to see if there are any tell tale signs on them.They are a good indicator of many problems that occur and can save a lot of time isolating the problem.They should all be the same colour.Is the air box and lid properly secured with no leaks or splits in the intake tube.Have you put injector cleaner in the fuel tank to clear up any possible dirty injectors.Therse a few things your problem could be including engine vacuum leak which you can find by lightly spraying carburettor cleaner around suspect places such as inlet manifold and around injector seals.
Posted on Oct 24, 2008
if it ran fine before belt change, you maybe off a tooth,I've been off a tooth with same engine had same symptoms along with erratic acceleration and poor gas mileage. Took off top cover, lined up no.1 tdc. and I was off 1 tooth at camshaft hole. was able to adjust without dismanteling everything. Loosen idler and you can get enough play to turn cam one cog. hope this helps.
Posted on Jan 03, 2010
Could be crank sensor, MAP sensor, Throttle Position Sensor, or the dreaded "Spider" injection system. Two more possibilities are Mass Airflow Sensor or (if equipped) Fuel Pressure Regulator. The Regulator is a huge problem on 3.8s, and is usually not a problem with the Regulator, but the vacuum supply hose. To see if you have one, trace the metal portion of your fuel lines on the top of the engine. It looks like a small, mutated EGR Valve with a vacuum hose connected to it. If you have one, check for cracks or other breakages in the vacuum hose.
Believe it or not, an official GM test technique is to unplug sensors. If the problem clears up, even a little, that's most likely the cause. But, for the sake of people who want to know..... When's the last time you serviced the vehicle? Tune up? Hope this stuff helps!
Posted on May 22, 2010
SOURCE: I have a 1999 Toyota Camry it starts up and runs for a few seconds and dies right down. I've changed the fuel filter and it seems to run just a little bit longer. But it still will not keep running. A
Check your fuel pressure. It may be low, or losing pressure from a bad pressure regulator. A thorough test of your fuel system seems in order. (A pressure test can also detect a bad regulator, if it's done properly.)
Posted on Nov 12, 2011
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