1994 GMC Sierra - Page 8 - Answered Questions & Fixed issues

if you didnot mark rotor orientation before removing pyt engine on top dead center # 1 cyl line roter up to #1 plugwire post on dist cap with a light look down the shaft bore for a slot that matches the end of dist shaft if they do not match p[osition get a long screw driver an turn the shaft in engine until they do then drop dist you may have to turn the rotor backwards about a tooth when you start to drop whn the cam and dist gears mesh it will line up oil pump drive shaft to dist shaft

best advice -- if it works leave well alone ,oil should never need changing on a autobox as it doesnt get dirty if it does then their is a problem with the gearbox

Sounds like the timing open the distributor and in there is a relector,is there alot of corrosion? This reluctor has a tendency to shift out of position causing the vehicle timing to retar,Another area to inspect is the MAP (manifold air pressure) .This sensor monitor engine load according to vacuum when this goes out you cant accelerate the vehicle and it sputters as the vehicle tries to accelerate,you need to check that the vacuum hose has not come off,or just failed

For Doors not getting open with remote or key problem,there are help links provided below.Click the link below to go through its procedure and troubleshoot the problem:---- drivers side front door will not open from inside or outside?

http://technoanswers.blogspot.com/2012/01/ford-f-350-crew-cab-drivers-side-front.html

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Car door will not close? http://howtobyme.blogspot.com/2011/11/car-door-will-not-close.html

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All power door locks not working ? http://howtobyme.blogspot.com/2011/11/all-power-door-locks-not-working-on_14.html

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Repairing car Door lock Actuator? http://howtobyme.blogspot.com/2011/11/repairing-car-door-lock-actuator.html --------------- How to Access car door panel? http://howtobyme.blogspot.com/2011/11/how-to-access-car-door-panel.html

---------- Vehicle door panel components?

http://howtobyme.blogspot.com/2011/11/vehicle-door-panel-components.html

--------- Truck Door will not close?

http://schematicsdiagram.blogspot.com/2011/12/ford-truck-door-will-not-close.html

----------- Where is Cars Door control Module located?

http://schematicsdiagram.blogspot.com/2011/12/where-is-cars-door-control-module.html

-------- Power door locks not working?

http://schematicsdiagram.blogspot.com/2011/12/power-door-locks-not-working.html

----------- Door ajar light stays on?

http://technoanswers.blogspot.com/2012/01/door-ajar-light-stays-on.html

---------- Door locks not working?

http://technoanswers.blogspot.com/2012/01/door-locks-not-working-on-ford-explorer.html

---------- Front Door dis-assembly diagram?

http://repairhelpcenter.blogspot.in/2012/02/front-door-dis-assembly-diagram-for.html

--------- Rear Door dis-assembly diagram?

http://repairhelpcenter.blogspot.in/2012/02/rear-door-dis-assembly-diagram-for.html

-------- How to test Power door locks?

http://repairhelpcenter.blogspot.in/2012/02/how-to-test-power-door-locks.html

-------- Doors will not open with Remote?

http://schematicsdiagram.blogspot.in/2012/02/lexus-doors-will-not-open-with-remote.html

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How to replace Door Hatch ? http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-hatch-on-acura-integra.html

--------- How to remove Doors?

http://repairhelpcenter.blogspot.com/2011/11/how-to-remove-doors-on-acura-integra.html

-------`- How to Replace Doors? http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-doors-on-audi-a4-and-vw.html

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Remote will not unlock Rear door? http://schematicsdiagram.blogspot.com/2011/12/remote-will-not-unlock-rear-door-on-gmc.html

-------- Door locks or windows not working on car? http://schematicsdiagram.blogspot.com/2011/07/door-locks-or-windows-not-working-on.html

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This will help.

Thanks.

First check the fuel pressure it should be 9-13 psi with the key on and engine off. If fuel pressure is within the specs then take EGR valve off and clean the carbon out of it then do the same with the idle air control valve.After sensors are cleaned you will need to reset the computer by disconnecting the ground cable on the battery or pull the ECM fuse for 1 second.

sounds like the IAC "Idle air control" is actin up. If the truck aint performing like it should, it could be a fuel pump issue, filter, etc. Go with the cheaper IAC first.

on that year i did not find one either when i rsearched it . so i"am going to say that headlight switch and relay all in one . . but if you have a enigine type fuse box check it anyway or goto headlight swtich and follow the wiring down a bit and see if there is anything connected to it .

try taking egr valve off and cleaning that and also check the o2 sensor . if not that maybe a hotter plug ?

start looking from the exhaust manifold and just look right down the pipes and soon as you see the sensor thats it . it is more than likly going to be pretty tough getting out . start spraying it down with pb blaster for a day or 2 . hopefully that will get it loose enough to remove it . i believe the size of the wrench you want is 1 1/8 inch and the wire just follow that til you get to the pigtail and unplug . install just reverse it

that atf stand for automatic transmission fluid also in the transfer case you need 80w90

I had this very same problem on a GM truck at work the other day, I believe it to be a bad headlight switch because I cycled the switch between headlight and parking light positions, I had tails when I had the switch in the parking light position and not in the headlight position, changed the switch and everything worked, Made my day!

biggest thing on those tests is the gas cap . but check the exhaust fix the leaks and the vent hose from the fiiler neck . some store do sell a product called pas emiisions tests or something like that . maybe try that

If yours is electric shift, you will need a new shift solenoid installed in the tranny.

Replace the theromstat

First remove plastic column cover,and possibly plastic panel just below that. may be star wrench or regular Phillips.When you get the panels off you will see two bolts holding the ignition switch in and a harness running down the column. I've never done a 94 specifically so I cannot tell you how long this harness is. I've seen them 10 inches long, and some 2 feet long.It will be zip tied tight up agents the column.Fallow the harness to the connector. Disconnect connector. Cut zip ties holding harness in place BE CAREFUL DO NOT CUT ANY WIRES!! ONLY ZIP TIES.Unbolt bots holding ignition switch cylinder in place, and install new one. May wan to get connector grease for the connector to keep moisture ect out. Oh, and remember to roll window down and disconnect battery before doing anything. Good luck

try checking the fuses and relay, also look for any loose baddly conected wireing

replace the bulbs in the tail light, they are 2 stage, one for parking light and one for brake/signal

should be up under the dash, labeled CTSY 20 amp

If your starter and battery are both good chances are your ignition switch is bad and will not allow power to your starter. If your replace the switch it should solve your problem. I hope this helps and if you have any other questions please feel free to ask.

If you have power for ANY running lights, you have power for the parking lights. If they do not light, they simultaneously have blown the bulbs about the same time. The other, is the dash switch, for the parking lights, section of the head lamp rocker switch has failed & needs replaced.