Few things are more disappointing than developing an engine performance problem while on the road, leaving you stranded. If this occurs, you need to quickly and accurately locate the problem so it can be corrected. Though a Pontiac engine is a complex machine, in most instances a poor-running one is often the result of a simple malfunction, not a major failure.
For this reason, HPP worked with Jim Taylor Engine Service's proprietor Jim Taylor and shop foreman Mark Erney to provide 11 quick diagnostic tips to keep you and your Pontiac on the move. Now, breakout the tool box packed with basic hand tools and a few diagnostic instruments that you so smartly packed before leaving home, and get to work.
Tip #1
It Won't Start
You just drove your Pontiac, stopped briefly, and now it won't turn over. You know the battery is fine, but when you turn the key, nothing happens. Check the battery connections and ensure that other electrical accessories still work. If they do, and the Pontiac has an automatic trans, check the neutral safety switch. You may get lucky and it works again when you place the shift lever firmly in Park. If not, check to make sure the switch is properly adjusted to engage when in Park or Neutral. If that doesn't work, you may have to remove the switch and use a jumper wire in its place until you can get a replacement.
Tip #2
Just A Click Away
If you hear a solenoid click when you turn the key but nothing else happens, the problem isn't in the neutral safety switch or the solenoid circuit; it's either in the solenoid switch or the starter. Sometimes a few taps on the starter body with a hammer will get the Pontiac to start again or if it's a manual, you may be able to push-start it. Regardless, the starter and/or solenoid will need to be repaired or replaced.