20 Most Recent 1997 GMC Sierra - Page 3 Questions & Answers

If you have white smoke out the tail pipe you have a problem with antifreeze entering the fuel system and burning with the fuel . You see the white smoke isn't smoke its steam from the water in the antifreeze . Witch leaves with 1 of 2 problems head gasket or intake manifold gasket . Being that its a chevy engine I would say its the intake manifold they have had a problem with this disgin for over 30 years not enough bolts to much glue . Over heat this engine once the glue melts and it starts leaking because of the pressure . The bigger problem you have is if you run this engine the antifreeze will get behind the pistion rings any wreck the engine in under a month. So do something quickly if you want to save it Good luck

Is there any check engine light on? or service engine soon ?

Replace the IPR sensor.

my first thought would be to check the mileage on the engine and then check to see it the cam shaft was turning ( broken timing belt/chain) Next thought would be to get the fault codes read I remember that GM has a massive recall for ignition switches that fail in service so I would be checking that out as well even before I spent money chasing a guess.

remove the dash covers bolts under neath and latching pins the there should be four screws

Check your fuses and you may have a fusible link that runs between your fuse box and switches if your fuses are fine then take one or both of your door panels off and check to see if they are getting power if so then it is the switch and I don't quite know what you mean by an oulet under your dash perhaps you might want to try and identify the part go to an auto parts dealer they will tell you what it is and you will need a tester for volts it doesn't have to be expensive to check if your wires are hot it will light a small light in the handle if not it may be something else . Get back to me with those answers and I will try and help you from there.

Be careful with this because if you accidentally spin the differential when the pin is out you'll have big problems and I bear no responsibility ! The guy in the video guy swears a lot, just so you know. https://www.youtube.com/watch?v=suDzpkxzYxw

Comes Out Of Bottom Of Heater/AC Plenum You Can See It Under Vehicle (sometimes hard to find) Called Plenum Drain.

check for a bad brake light fuse! if not the fuse, the brake light switch operates brake lights and if bad you will not be able to shift it out of park, as well as the brake lights not coming on.! because you have to put foot on brake to do so. if bad switch, it wont let it out of park. it could be just out of adjustment also!! good-day !

The brake light switch is usually mounted on a bracket just above the pedal lever. You have to get down (and dirty) inside the vehicle under the dash panel to reach the switch. Remove the two wires, usually a plastic plug that you have to pull off the switch, then unscrew the switch from the bracket. When fitting the new switch, screw it hack onto the bracket, then adjust it in until the switch pushes in about halfway against the pedal lever. Check for proper function and adjust as necessary.

you can unbolt those 2 15mm nuts to move steering column a little but usually I just fight with it great design aint it

theres a lot to it ,did you try autozone library its all free and no spam

If the starter engages when the clutch is pressed in, it probably has something wiring/connected wrong or a short in the wiring or other related components.

CAUTION - Be careful when using volatile fluids like starter fluid in the open as they are flammable and may start a fire; having a fire exstinguisher present is a good idea. Pull back a small part of the boot just in front of the throttle body, open the throttle all the way up and spray about 3 seconds of starter fluid inside the manifold. Push the boot back in place and attempt to start it. If it starts or attempts to start but shuts back off, it has fuel supply issues which could be the injectors, wiring, the ecm, the fuel pump or other related electronics.

I'd get a can of easy start or equivalent and see if it runs then, if so and u say u got fuel pressure it can only be a couple of things really 1 crank position sensor cam position sensor rail pressure sensor if it has 1 or ecu fault

You may want to check the ignition module or the coil pack(s) for the spark issue. How are you checking for spark? The parts house has a very cheap tool to check for spark. It connects to the plug wire and the other end connects to the plug which does not have to be removed from the engine. Have someone turn the engine over and the clear window will register a light if you have spark. You may not have fuel pressure because you cannot start the truck. I am assuming with no spark you do not have a running engine, which may be causing a no fuel pressure issue. Do you have a mechanical fuel pump or an electric? Fuel pressure issue can be figured based on the last question I posed to you.Hopefully answering the questions I am asking and the directions towards spark issues will fix your problem.

check the front transfer case, if that goes it will act like the transmission has gone