Question about 1998 Chevrolet S-10 Pickup

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How do you change high idle on a 1998 2.2 Chevy s10

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  • 31 Answers

You can't change it, it is controlled by the ECM via the Idle Air Control valve. Its a small solenoid type part that is screwed into the throttle body about mid way. It opens/closes by command to allow more or less air into the system to raise and lower the idle. If its stuck open, you will idle too high, closed is too low. I have replaced a lot of these over the years, carbon builds on them, they get hot/cold a lot, and they do fail. If you need to replace it, you likely will just install it, plug it up, then drive at 35mph or more for a few minutes to allow it to calibrate itself. Good Luck !

Posted on Jan 04, 2017

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Posted on Jan 02, 2017

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fizzerdan
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SOURCE: 1994 s10 service engine soon light

Have you had the truck scanned for codes? If so, what was the code, codes? Why did you replaced those listed parts. Can you hear any hissing noise coming from the engine or engine compartment?

Posted on Sep 04, 2008

jeffbvegas1
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SOURCE: Heater 1998 chevy s10

wide open hung thermostat can cause this too...continual circulation never allows the water to get hot enough to warm the heater core

Posted on Jun 23, 2009

pippall
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SOURCE: 1987 chevy S10 engine idle problem

relace the throtle air idle valve.The temp switch will allso cause this problem.

Posted on Jul 19, 2009

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SOURCE: 1998 Chevy S10 front axle will not engage when put into 4 wheel

Normal thing that happens as long as onone (worked) on it, is the vacume hose going to the engage sevevo under the battery box has fell of on either end or is brocken on the way there. Then the once or now leaky battery acid ate up this same servo. then the cable going to the front axel breaks sticks falls off or even someone needing one climbed under your truck while parked somewhere to get one to replace their brokeen one now you don't have one then theaxel engage arm or gearset is damaged

Posted on Aug 16, 2009

c17hydro
  • 2984 Answers

SOURCE: need instructions on how to change the lifters in

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2.2L Engine When installing new lifters, a pre-lube should always be applied to the lifter body. It is also a good idea to prime hydraulic lifters by submerging them in clean engine oil and depressing the plunger using an old pushrod. This allows the internal components of the hydraulic lifter to coat with oil before initial operation in the engine. All lifters should be replaced when a new camshaft is installed.
If any valve train components (lifters, pushrods, rocker arms) are to be reused, they must be tagged or arranged during removal to assure installation in their original locations.

  1. Remove the rocker arm cover.
  2. Remove the cylinder head assembly from the engine.
  3. Remove the bolts retaining the lifter anti-rotation brackets, then remove the brackets.
  4. Remove the hydraulic roller lifters from the bores.
  5. Inspect the lifter and lifter bore for wear and scuffing. Examine the roller for freedom of movement and/or flat spots on the roller surface.

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Remove the bolts retaining the lifter anti-rotation brackets ...


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... then remove the anti-rotation brackets


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The lifters are located in bores in the engine block


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Use a lifter removal tool to remove the lifters from the bore

To install:
If installing a new lifter, coat the lifter body with a suitable camshaft pre-lube
  1. Install each hydraulic lifter to its bore being careful to align the flat sides (top) of the lifters with the flat sides of the anti-rotation brackets. When properly installed the flat sides of each lifter are aligned parallel to the anti-rotation bracket. The roller at the bottom of the lifter is parallel to the camshaft lobe.
Make sure to properly align and install each lifter as improper installation of the lifters or brackets could result in engine damage.
  1. Install the anti-rotation bracket retaining bolts and tighten to 97 inch lbs. (11 Nm).
  2. Install the cylinder head.
  3. Install the rocker arm cover.

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Removing the hydraulic roller lifter from the 2.2L engine

Posted on Feb 06, 2010

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HIGH IDEL


sometimes the gasket under the trottle body goes bad. spray carb cleaner at the base of the trottle (not down into it) body while the engine is running. if the idle changes your on the right track. its an easy gasket to change.

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