1999 firebird V-6 intermittently will not start with good battery,connections and starter.WHY???

20

Asked by Jan 06, 2014 at 01:02 AM about the 1999 Pontiac Firebird Base

Question type: Maintenance & Repair

Have suspected body control module defective, it controls starting system. As well as my horn which does not work after alarm system stopped working. It will start up fine over and over, but just will not send signal to solenoid on starter. Can jumper solenoid/starter and car will start (with key on) but immediately dies. Ignition switch when turned on engages instrument cluster,etc... and battery meter on instrument cluster shows load /needle movement. So I don't think its ignitions switch.

7 Answers

20

....when it intermittently does not start - no clicking from solenoid/starter and no 12volt signal to solenoid. but intermittently it will get 12v and start just fine.

5,155

You're going to have to trace the harness, I'm afraid. There are two connectors between the ignition harness and the BCM, one or both of them might be loose. I've seen similar issues after someone has installed an aftermarket stereo or capacitor. The harness runs right in that area. These cars are notorious for poorly manufactured BCM's. You can get one for about $150. It's located under the dash behind the glove box compartment, not that hard to get to. Good luck!

20

Thx! you called it! one of the connectors that plugs into bottom of BCM was loose. Removing the bottom panel under glove box allowed easy access and view. I believe hitting a pothole was the cause of connector loose. I believe my BCM is defective for horn, but not for starting system.

2 people found this helpful.
5,155

there ya go

15

For people with a similar issue and replacing the BCM didnt fix the problem, It could be the Key reader in the ignition lock cylinder starting to go bad, or the ignition switch itself.

15

Check the neutral safety switch if you have an automatic/clutch safety switch if you have a manual, before replacing the BCM, it might save you alot of time and money.

15

If your car will start with the key but dies immediately, its probably the fuel pressure regulator, or Throttle position sensor.

Your Answer:

Firebird

Looking for a Used Firebird in your area?

CarGurus has 685 nationwide Firebird listings starting at $3,995.

ZIP:

Pontiac Firebird Experts

  • #1
    Samuel Moore
    Reputation
    1,030
  • #2
    dandyoun
    Reputation
    840
  • #3
    Tom Demyan
    Reputation
    810
View All

Related Models For Sale

Used Chevrolet Camaro
242 Great Deals out of 26,934 listings starting at $2,900
Used Chevrolet Corvette
79 Great Deals out of 15,067 listings starting at $3,700
Used Ford Mustang
297 Great Deals out of 39,759 listings starting at $1,312
Used Ford Mustang SVT Cobra
3 Great Deals out of 234 listings starting at $7,300
Used Chevrolet Silverado 1500
1,787 Great Deals out of 155,768 listings starting at $1,495
Used Chevrolet Monte Carlo
4 Great Deals out of 969 listings starting at $1,125
Used Jeep Wrangler
212 Great Deals out of 15,006 listings starting at $2,500
Used Chevrolet Impala
510 Great Deals out of 26,020 listings starting at $995
Used Ford F-150
2,319 Great Deals out of 198,937 listings starting at $1,300

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.