Why wont my truck start?

Asked by Dec 18, 2013 at 03:15 AM about the 1994 GMC Sierra 1500

Question type: Maintenance & Repair

I was driving to work and suddenly the truck starting idleing rough at stoplights and had decreased exceleration. My oil pressure gauge was normal, my heat guage was normal, but my battery gauge did abnormal behavior when I went to slow down. (It went down below 12 but when I came to a complete stop it went back up to 14). At my lunch break, The truck turned over but idle even more severe than on my way to work. At the end of my shift, the truck will not even turn over.

Things I inspected:
Pcv valve is cracked.
All wires and cables are attached and not coroded
I have a brand new distributor cap.
Tried jump starting it, no avail.
Fuel pump primes itself when I turn the key like it should.
Air filter is somewhat dirty but not horrible.
Gas is getting to where it's supposed to but nothing is sparking the gas.
there was some knocking noise when the engine was idleing.
Have not inspected the spark plugs yet.

The truck turned over for a brief moment today but died immedietly after turning over.

5 Answers

The same thing is happening to mine. I tightened the battery cable to the alternator and it started working fine for about a week. Now it is doing it all over again, and I cannot figure out why. I am going to take it to Autozone here soon so they can run a diagnostic check on it. If I find anything I will respond again.

10

clean the plugs and take the air cleaner off and try to jump start it, if it wont even turn over, jump the terminals on the starter, that should help.

10

fuel filter

ok i changed starter, fuel filter, air gas seperator, and a new battery that is about 5 months old and truck truck would start on a dime before i parked it 6months ago what else is there to look for? HELP PLZ

This happened to me a little while back it was my alternator. Then it was doing something again a couple days later now it's perfectly fine after replacing spark plugs and coils.

Your Answer

Add photo

Related Questions

  • why wont my truck start? 2 answers

    The truck was running fine the day before we drove it and there was no problem. The next day it was cold through the night and it is becoming winter. I started the truck the next day from the day ...

    1996 GMC Sierra 1500 C1500 SL Standard Cab SB

    -

    Maintenance & Repair

  • Why wont my truck start? 5 answers

    I was driving to work and suddenly the truck starting idleing rough at stoplights and had decreased exceleration. My oil pressure gauge was normal, my heat guage was normal, but my battery gauge did a...

    1994 GMC Sierra 1500

    -

    Maintenance & Repair

  • Why my truck won't start 2 answers

    I have replaced my plugs and wires and distributor, I have also changed the ignition coil but when I check for spark it's a dull orange spark please help me

    1998 GMC Sierra 1500 K1500 SL 4WD Extended Cab SB

    -

    Maintenance & Repair

  • why wont my truck start now after i put gas in 5 answers

    drove my 03 sierra to the gas station and after i put gas in it stalled on me as i was driving away, it started and stalled a few times but now it just wont start, what could cause this? pleez help

    GMC Sierra 1500

    -

    Maintenance & Repair

  • My truck wont start after i changed the valve seals 1 answer

    I changed out the valve seals and after i put it back together it wont fire and i noticed that there is no fuel coming from the injectors that i replaced 2 years ago along with the fuel pump and filte...

    1991 GMC Sierra 1500

    -

    Maintenance & Repair

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 68,894 nationwide Sierra 1500 listings starting at $1,800.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 5,230
#2 John Saffrahn
John Saffrahn
Reputation 3,640
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 3,330
View All

Related Models For Sale

Used Ford F-150
2,179 Great Deals out of 194,802 listings starting at $290
Used Dodge Ram 1500
417 Great Deals out of 10,964 listings starting at $1,000
Used Toyota Tacoma
542 Great Deals out of 43,390 listings starting at $1,995
Used GMC Yukon
419 Great Deals out of 20,545 listings starting at $1,495
Used Chevrolet Tahoe
588 Great Deals out of 33,115 listings starting at $1,500
Used Chevrolet Camaro
354 Great Deals out of 31,425 listings starting at $2,500

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
85 Great Deals out of 44,489 listings starting at $23,368
2016 GMC Sierra 1500 For Sale
89 Great Deals out of 3,514 listings starting at $17,670
2015 GMC Sierra 1500 For Sale
104 Great Deals out of 4,273 listings starting at $16,291
2014 GMC Sierra 1500 For Sale
97 Great Deals out of 4,206 listings starting at $13,995
2013 GMC Sierra 1500 For Sale
58 Great Deals out of 1,947 listings starting at $8,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.