20 Most Recent 1997 GMC Sierra - Page 9 Questions & Answers

You mean it will not start, right ?Have you checked the fuel pump relay for power and ground ?

The distributor is out of time. Bring it back to #1 TDC and try to drop it in. If it doesn\'t go in all the way, it\'s because the oil pump drive isn\'t lining up. All you do is have someone "tap" the engine over in very short bursts. Eventually it will line itself up and drop in. Unfortunately, even if you get it started, you will probably get a check engine light. If you do, you will need access to a scanner that will display data. Look for a data line called "CMP Retard", make small adjustments to the timing and snap the throttle. Get this reading as close as possible to 0. I believe the tolerance is +/- 2 degrees. If you can\'t get it close enough, the distributor is still out a tooth. ALSO, keep in mind that the air filter must be in place. Without the inlet hoses, the mass airflow sensor cannot read properly.Good luck!

check the distributor timing

Go to You Tube Video & watch Wayne at Real Fixes Real Fast

first check battery, and battery connections. Did you leave something on? Do the lights work, or dead ? more info please 4.3L engine?

You may have a weak water pump, bad thermostat, or an air locked system. Flushing the system is the best remedy first to pin point things.Then test the thermostat by taking it out and putting it in a pot of boiling water. If the thermostat opens, it is ok, if it doesn't it's bad. Let me know if this helps, and after you try that, if it doesnt work we can run further tests let me know

Put some transmission conditioner in and run for awhile, could be a sticking spool in the valve body from shellac buildup.

Burnt bulb, bad ground or prob with the activation switch at transmission, no power there etc.

Problem could be the brake switch or the solenoid that locks the shifter in park.You may be able to turn the key switch past lock but not on, and then take the shifter out of park. The lock solenoid would need to be tested.

nothing, It doesn't work like that, when your brake switch is mounted , correctly , your pedal has a bracket on it that pushes the switch plunger in so brake lights are off. when you push brake pedal in, to stop vehicle, the switch plunger (spring loaded) comes out to turn brake lights ON ! get it ? when you release pedal it pushes plunger in, to turn lights OFF !

take headlights out and separate glass from plastic by releasing clips. when re-installing use silicone inbetween glass and plastic to stop leaks

Why are you asking?You have a check light onCodes or Not you need to diagnosethe issueYou most likely have stored data a code reader can't see

Change the bulb maybe?If this doesnt work, have a look at he contacts, since its a 97 the contacts could be rusted. Just get a piece of sandpaper and clean it up, should be good.If this doesnt work, may check the voltage of the wiring loom.Hope this helps.Owen.

These have a problem with a injection pump control. It is a black box on the drivers side of the Injection pump. Either that or maybe a lift pump. When it dies, after it sits a while does it start right back up?

You have to drop the transmission oil pan to change the oil, while you are changing the oil the filter is also replaced too.

have you tried giving it a jump? you probably have either a bad altenator or starter. both are cheap parts and quite easy to fix