Question about 1994 GMC Sierra

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I have a 1994 gmc Sierra k1500 with a 5.7L V8 and it is idling high how can I fix it

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  • GMC Master
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The most common causes are a sticky idle speed control valve, a vac leak, or a dirty throttle plate.

Posted on Mar 30, 2015

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Posted on Jan 02, 2017

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SOURCE: in-the-tank fuel pump r&r

Here are instructions for replacment with a diagram of the fuel pump components my only suggestion would be instead of draining the tank and dropping the fuel tank if you unbolt the box and using a jack and and some wood lift the fuel tank side of the box this will give you access to the tank and fuel pump/ sending unit. It will save you time and the hastle of replacing the tank straps which are prone to snapping at the threads when trying to remove the nuts.If these brake you will have to replace them.

Posted on Nov 20, 2008

  • 6 Answers

SOURCE: 2000 gmc sierra 1500 5.3 v8. a/c heater control problem

your heat/cool and vent selection options are controlled by engine vacuum through small clear tubes attached to the rear of your climate control interface. Other vehicles have small steel pull wires that operate the desired changes. You might try removing the trim and any fasteners affiliated with the interface/console. GENTLY pull outward and look to see if any of these tubes are pulled off or cut/damaged. Did anyone recently install a new stereo in the vehicle? If so, the vacuum tubing and or pull wires that change your outlets could have been damaged when the stereo unit was pushed into place. Hope this helps

Posted on Sep 09, 2009

Testimonial: "Very good information. THANKS!"

  • 1796 Answers

SOURCE: fuel filter location for 1997 gmc sierra truck v8

Underneat the truck by the drivers door.

Posted on Mar 02, 2010

wilsodfarm
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SOURCE: Torque Specs for Head Bolts on 1997 GMC Sierra V8 5.0 Vortec?

.0L Torque Specs Belhousing to engine bolts 28-38 ft/lbs Camshaft sprocket bolt 40-45 ft/lbs Camshaft thrust plate to engine block bolts 108-144 in/lbs Crankshaft pulley to vibration damper bolts 35-50 ft/lbs Cylinder head bolts -1979-1992 --Step 1 55-65 ft/lbs --Step 2 65-72 ft/lbs -1993-up --Step 1 25-35 ft/lbs --Step 2 45-55 ft/lbs --Step 3 75-85 ft/lbs Differential shaft lock bolt 15-30 ft/lbs Driveshaft U-joint to pinion flange bolts 70-95 ft/lbs Exhaust manifold bolts 26-32 ft/lbs Flywheel mounting bolts 75-85 ft/lbs Front engine mount nuts 72-98 ft/lbs Intake manifold to head bolts --Step 1 96 in/lbs --Step 2 16ft/lbs --Step 3 23-25 ft/lbs Intake manifold (upper intake to lower) 12-18 ft/lbs Oil filter insert to engine block adapter bolt 20-30 ft/lbs Oil pan mounting bolts -1979 --Step 1 (Large bolts) 11-13 ft/lbs --Step 1 (Short bolts) 7-9 ft/lbs --Step 2 (Large Bolts) 15-17 ft/lbs --Step 2 (Short Bolts) 10-12 ft/lbs -1980 to 1987 9-11 ft/lbs -1988 to 1993 6-9 ft/lbs -1994-up 110-144 in/lbs Oil pickup tube to main bearing cap nut 22-32 ft/lbs Oil pickup tube to oil pump bolts -1979 to 1987 10-15 ft/lbs -1988-up 12-18 ft/lbs Oil pump mounting bolts 22-32 ft/lbs Pinion bearing preload 8-14 in/lbs Pressure plate to flywheel bolts 12-24 ft/lbs Rocker arm fulcrm bolts 18-25 ft/lbs Spark plugs 7-14 ft/lbs Timing chain cover bolts 12-18 ft/lbs Vibration damper to crackshaft bolt 110-130 ft/lbs Wheel lug nuts 85-105 ft/lbs

Posted on Mar 16, 2010

  • 355 Answers

SOURCE: Passlock Security information for GMC Sierra 1500"

you can bypass the system. There is a great write-up here: http://newrockies.ca .

Posted on Jun 14, 2010

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Related Questions:

1 Answer

Replace alternator in 1994 gmc Sierra and now my battery voltage is high. ..why?


It depends what you consider high voltage. It could just seem high because it was too low with a bad alternator. What voltage is it running at?

Feb 23, 2015 | 1994 GMC Sierra

1 Answer

94 GMC Sierra starts, idles about 1500 rpm, will stall or sputter when accelerated, will have trouble restarting...replaced egr and iac valve. New fuel filter. Recent oil, plug, and wire change. ...


Hi,

Improve the Fixya.com experience for everyone by voting!

It sounds to me like your idle relief valve is malfunctioning. This little device pictured below does a lot of good things but is a pain when not functioning.





2q==




• Regulates the amount of air entering the engine during idle.
• When not replaced, vehicle could experience high or low idle, engine dies at idle and/or severe high idle possibly causing internal engine damage and safety issues.
• Designed to meet or exceed OE specifications in form, fit and function.
• Global coverage for import and/or domestic applications.


The Wells Company offers extensive application information and technical support via its Tech Line at 1-800-558-9770, as well as in-depth product and repair videos at www.wellsVE.com and through the "Wellstech" channel at www.YouTube.com .

Jun 03, 2011 | 1994 GMC Sierra

1 Answer

Engine light code 44 1994 GMC Sierra Pickup HD 5.7l, 4wd.


look for a serious exhaust or intake leak. look for bad wires to the o2 sensor or map sensor. just for starters.

Jul 20, 2010 | 1994 GMC Sierra

1 Answer

Engine idle high when taking off


not sure what you are asking the truck should idle high on take off.

Jun 29, 2009 | 1994 GMC Sierra

1 Answer

1998 GMC SILVERADO FIXED AND REPLACED EVERYTHING ,HIGH IDLE


have you replaced your intake gaskets? this is a problem on these trucks with high milage. to see if your intake is leaking spray it down with Brake cleaner and if it is leakin you will hear a drop in Rpm's
hope this helps
please rate me
Thank you
Aaron

May 08, 2009 | 1998 GMC Sierra

1 Answer

Tailpipe BLACK , exhaust reaks of gas !


garage mans company.
broken plugs.

Mar 12, 2009 | 1996 GMC Sierra

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