Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
orangestew

98 tahoe fuel pump?

4 posts in this topic

In the last couple of days my wifes Tahoe has had a problem starting. First time it happened she was driving it, dropped the kid of at the day care went out 5 minutes laer and I had gotten the call that it wouldn't start. She claimed it would just keep turning over like it wasn't getting gas. When I got there it started right up.

Next time it happened to me. Right away I noticed I could not hear the usual noise of the fuel pump as soon as I turned the key. After trying it several times throught out the day I had no luck. Now 16 hours later it decided to start.

Is this most likely the fuel pump that is going bad or could it be something else? I have had other vehicles where the fuel pump had gone bad and stopped working but not like this. At least not where it stops and then starts working again. Is there any way the fuel pump can be tested to verify that it is going out? Do I just have to take it to the mechanic and assume that I need to have the fuel pump replaced?

I have started the vehicle several times in an hour and have not had any problems. Don't really want to take the vehicle out of town if I can't trust that it is going to start.

Any advice on this would be greatly appreciated.

Share this post


Link to post
Share on other sites

If it working theres not a whole lot to check. When it was not working was the time to see if the pump had failed. You'll need a fuel pressure gage (a minimum of 56 psi is necessary for the vehicle to start, one pound less and it will not fire up) and a volt meter. If your dig the wires out of the wire loom as close to the tank as possible you will see two grey wires. One of them supplies voltage to the fuel pump. Make sure one of them has 12 volts for a couple of seconds when you turn the key on and 12 volts anytime the vehicle is cranking. If the power is there that likely the pump has failed.

Make sure you check the harness connector that plugs into the module assembly. There is a known issue if the contacts burning up from excessive amperage draw. you see a brownish discoloration if this is the case.

Share this post


Link to post
Share on other sites

Its not uncommon for pumps to start up again after failing. It just means they are on the way out. The symptoms you describe sound like it could be the connector, like Airjer said, but depending on the vehicle mileage if you have to pull the tank, you may as well put in a pump and be done with it.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • The US gets Assange this way. Not difficult to understand.
    • It has a slight liberal bias: all major news media lies between the political ideology of a typical Democrat and a typical Republican. No outlet is going to intentionally dissuade 30% of the market, it's just bad business. With regards to Trump though, he has made an enemy of the press. It has little to do with his political affiliation and everything to do with his confrontational attitude. See this "come at me bro" of a statement from the Press Corps. Note they welcome Trump to sue them for the so called "fake news", probably because they are confident in the accuracy of their articles. Also realize that it is entirely possible for something to be accurate and biased: which is probably all you will see in Trump coverage from here until the end of his Presidency    
    • So we support intelligence depts now?
    • You mean fake Bruce Springsteen.  The real one is a librul and the fake one didn't want to urinate on the bed of the real one.   I'm sure Trump wanted them to play "Born in the USA" like all the other politicians that have no clue what that song is about but like the chorus.  
    • I'm trying to wrap my head around this one. Obama truly is a bigger POS than I thought. Good, God this is bizarro world. By commuting the sentence of this freak show, it's like burning down all the intelligence depts. Why do we have laws? 
    • So Obama is mad at the Russians for hacking and Wikileaks for publishing the hacks yet he just Pardoned Chelsea Bradley Manning who stole secrets and gave them to Wikileaks   This is a real WTF moment.
    • You failed to post the very next part of that very article:     You never patted Obama on the back for any of that oddly enough.    http://www.reuters.com/article/cbusiness-us-gm-tech-center-renovation-idCAKBN0NZ19920150514   So either congratulate both or congratulate neither.
    • Because you are banking on not having to pay it back in your lifetime and are perfectly fine with passing that debt down to future generations which allows you to live a better lifestyle at their expense.  Some of us don't think it'e ethical to pass debt onto generations who will have no say in the process.
  • Our Sponsors