won't start

Asked by Jan 23, 2016 at 10:19 PM about the 1979 Chevrolet C/K 10

Question type: General

My truck wont start I have fuel and spark I have
replaced the ecm rotor cap new plugs wires and
put a new starter switch and still won't start

4 Answers

73,785

You say starter switch? So what does it do, not turn over or not start? And you say there is spark and fuel? Was the distributor moved?

15,345

If you changed out the starter, are you saying it is not turning over? Or will it turn over but it does not appear to get any spark? It could be a computer needing program, lose sensor wire, blown fuse to the fuel pump, or the computer running the spark plugs needs attention. See if you can get the fuses checked, see if there is spark at the plugs, and if it gets fuel. If it is not turning over, check the battery for a full charge. Make sure the wires are connected, on and tight.

1,090

Since you say you have fuel (squirting into the carb, I'm assuming) and spark (didn't need to replace the switch if you have spark); '79s did not have a computer so that's not an issue. If the distributor has three or four wires entering at the base in the back - from the firewall then you may have an electronic advance (this electronic control module (E.C.M.) can go bad but it wouldn't kill the engine completely), but they were not put on 305s standard until late '82. In any case try rotating the distributor counter- clockwise between five to ten degrees. This will advance your timing. If it fires up after that then you have a timing issue. If your distributor is the old vacuum type you may have a leaky vacuum hose or fitting or the centrifugal advance mechanism in the distributor may be stuck, have a broken spring or just plane worn out.

1,090

(continued) if for some reason you do have an electronic control module, the sensor it uses is called a "knock sensor" mounted in the engine block. Either the sensor has gone bad or the E.C.M. is bad.(E.C.M. is located under the dash behind the center heater vent) The knock sensor can be tested with an ohm meter an I have no idea how to test the E.C.M.

Your Answer

C/K 10

Looking for a Used C/K 10 in your area?

CarGurus has 317 nationwide C/K 10 listings and the tools to find you a great deal.

ZIP:

Chevrolet C/K 10 Experts

  • #1
    CaptPKelly
    Reputation
    790
  • #2
    F_O_R
    Reputation
    380
  • #3
    Rowefast
    Reputation
    370
View All

Related Models For Sale

Used Ford F-150
2,324 Great Deals out of 184,534 listings starting at $699
Used Chevrolet Camaro
427 Great Deals out of 30,919 listings starting at $3,550
Used Ford F-100
167 listings
Used Chevrolet Corvette
297 Great Deals out of 20,715 listings starting at $2,990
Used Chevrolet Blazer
1,056 listings starting at $950
Used Ford Mustang
711 Great Deals out of 38,332 listings starting at $895
Used GMC C/K 10
8 listings

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.