Problem with starting

Asked by May 18, 2016 at 02:53 AM about the 1999 Pontiac Grand Prix 4 Dr GT Sedan

Question type: Maintenance & Repair

Background info:
So my car has been sitting for awhile, I've
been super busy with school and I didn't
have time to replace my waterpump.
Finally got around to it put it on supper
easy.
Then I sprayed some either to get it started
and I put some higher octane fuel in the
tank(I put 103 I think it was meant for off
roading vehicle) I know I shouldn't have I
thought it was injector cleaner.
But the car started and stayed running for
8 minutes, then died out. So tried starting it
again and nothing, gave it has and no
change in the sound of the motor.
So I  thought it was bad gas so I drained
the whole tank and put a gallon of clean
gas and still nothing so I took the fuel filter
off ad when I pulled it off and some black
crumbling debris came out put a new one
on. Then tried starting it and the same
sound from the motor even when pushing
the gas.
Any ideas, I'm kinda lost.
Btw the fuel pump is working because the
way I drained the tan was by undoing the
tan hose from the filter and just turning the
key from off to on (a lot ) and letting the
pump, pump it all out, like it would do to
pressurize the system when you start your
car every time.

3 Answers

23,345

look for a disconnected sensor on engine from working around it with pump installing , plugs may be wet with fuel , hold peddle to floor or pull pump relay to avoid flooding , check start fluid response

Sorry about the horrible grammar I was doing it all on my phone. I never pulled the fuel pump, don't think that is necessary. I looked around the waterpump and there is nothing there that is disconnected. When I installed the waterpump, didn't disconnect really anything besides the belt and power steering pump. The car doesn't have a fuel pump relay it just has two fuses. Pulled all fuses and they were good. I'm still dumb founded by what's wrong

What will holding the peddle to the floor do and what would/how would you check the start fluid response

Your Answer:

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1,761 nationwide Grand Prix listings starting at $800.

ZIP:

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,720
  • #2
    Tom Demyan
    Reputation
    3,300
  • #3
    munron
    Reputation
    2,840
View All

Related Models For Sale

Used Chevrolet Impala
442 Great Deals out of 25,964 listings starting at $950
Used Pontiac Bonneville
330 listings starting at $1,900
Used Chevrolet Monte Carlo
4 Great Deals out of 952 listings starting at $2,950
Used Pontiac Grand Am
727 listings starting at $1,900
Used Ford Mustang
268 Great Deals out of 38,445 listings starting at $1,350
Used Chevrolet Camaro
238 Great Deals out of 27,434 listings starting at $2,077
Used Chevrolet Malibu
508 Great Deals out of 52,352 listings starting at $1,550
Used Pontiac Firebird
5 Great Deals out of 683 listings starting at $4,700
Used Buick Regal
86 Great Deals out of 3,945 listings starting at $4,999
Used Nissan Altima
754 Great Deals out of 67,300 listings starting at $1,495

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
289 listings starting at $3,995
2007 Pontiac Grand Prix For Sale
239 listings starting at $2,000
2006 Pontiac Grand Prix For Sale
4 Great Deals out of 290 listings starting at $1,495
2005 Pontiac Grand Prix For Sale
3 Great Deals out of 233 listings starting at $1,500

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.