Question about 1997 GMC Sierra
Can't start my truck, check the fuel pump,fuel filter,fuel pump,starter,battery. What it does is like no spark or I don't know
never had that problem before
I found what was wrong with it, Checked everything but the distributor cap and rottor they were all worn out, changed them for new ones and the problem was solved, regarless Thank you so much
for trying in helping me with my problem I' ll try to do the same if I'm required thanks again.
Posted on Nov 02, 2008
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Posted on Jan 02, 2017
WELL IF U HAVE FUEL PRESSURE AND SPARK THEN CHECK TO SEE IF YOU HAVE INJECTOR PULSE.
Posted on Aug 13, 2009
Testimonial: "Thank you, directions are specific, just what i needed, very helpful"
If you replaced the distributor, it may be out of time. Find the firing timing mark on the harmonic damper and adjoining degree scale then mark those two points with white paint. Hook a timing light on #1 spark plug wire (driver's side front), and turn the engine over looking for the light flash to illuminate when the marks match up. Rotate the distributor until it does. If it is nowhere close, then you will have to align the distributor manually by removing #1 plug, turn the engine CW with a wrench on the crankshaft bolt while keeping a finger in the plug hole and continue until the cylinder is building compression--at the point, remove your finger and keep turning the engine until the timing marks line up. Check the rotor of the distributor which should be pointing at the #1 plug wire position in the cap. If way off, the distributor needs to be removed and turn the shaft until the rotor points correctly when the unit is reinstalled. Final adjustment is then accomplished by rotating the body of the distributor. Whew! Hope this gets you running.
Posted on Oct 29, 2009
Remove the distributor cap,look inside to see if the reluctor is emersed in oil,if so,replace the distributor,the seal in the distributor is bad.
Posted on Jan 26, 2010
could be filter listen to hear pump come on also when it will not start a pressure test as well as a volume test would be needed to decide pump or filter keep in mind these test will take ten min and fuel filter replacement will take about 5min fuel pressure should be at least 42psi running around fifty with key on engine off
Posted on Feb 18, 2010
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A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also these problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt. If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced. If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the car. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem. Thanks. Helpmech.
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