Question about 1992 Suzuki Sidekick

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Wont idol when warm, thottle won't respond right........

Runs great when cold. After it warms up it won't idol steady, can't accelerate right, burns tons of gas, can't set the timing cause it jumps all around. All cylinders seem to be working equally after checking spark plugs. My truck is a 87 samurai with sidekick 1600 16 valve!!! I can't get anywhere with it. I have read and heard it could be the lower timing belt pulley " key to the crankshaft" " harmonic balancer". Right?? Wrong??????? Need some other direction if anyone can help??

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  • naj20041 Sep 04, 2009

    I've done the throttle cleaner a couple times. Works good for preventative maintenance but doesn't solve my issues. Anything else????

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Your harmonic balancer is loose, screwing up all the timingof the valves. Take off the timing belt cover, remove the belt and see if you can move the timing belt sprocket by hand. there should be no play, but it may start as things warm up. See if the key is banged up. If so, replace key and retorque the bolt to 90lbs torque. the new spec. I had this exact issue. the crank was banged up a little, so i solved that problem by buying a new timing sprocket heating in a oven to 500+ degrees and slipping it back on with some precut feeler gauges that I had lying around. Jam in between the crank and the sprocket, around so to be as even as possible. As the sprocket cooled down it shrank down tight and then quickly tighten the bolt to 90lbs. This was done over a year ago, and no more problems.

Posted on Nov 02, 2009

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It's the automatic choke!

The choke is "closed" or barely open... When cold, the engine needs a RICH mixture (more gasoline, less air). When the engine warms up, it requires a LEAN mixture (less gas, more air).

It is probably creating BLACK tailpipe smoke ... that means unburnt gasoline. (Blue smoke is OIL, white smoke is WATER).

Put the parking / emergency brake ON.
1. Remove air cleaner assembly from intake, use a carb cleaner spray or throttle body spray cleaner and spray just a little. (AutoZone $5)
2. Find the accelerator arm under the hood.
3. start car, rev the engine to make sure how to operate the accelerator from under the hood.
4. Carefully spray into carb / throttle body and work the accelerator ... don't let the engine die...
5. Watch out for "backfire"... it may create a small flame out of the carb. It will extinguish itself in one second.

6. You may need to do this two, three times.
7. Add a "complete fuel system cleaner" to your next tank of gas ($8).

That's it! ... pretty cheap, too.

Hope this helps!





Posted on Sep 04, 2009

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