I've got a 2001 Tahoe , when a drive any distance and the motor warms
up to temp if I stop for say 10 or 15 minutes and then go to restart it
, it will turn over but it won't start unless I give it 1/2 or full
gas, it then starts and will hurt for an rpm to idle at and finally it
will settle for 500 and run just fine? Anyone else ever have this
probelm and know the fix. So far I've changed the plugs , wires, and
the gas and air filters, thanks for any help anyone can give. oh no
I had the exact same problem on my 2000. Take off the vacuum hose to
the Fuel Pressure Regulator and see if fuel is present. If it is, you
might have to replace the FPR. IIRC, the fuel pressure regulator was
on the fuel rail, driver side, near the firewall and is a 15 min DIYer
job to replace it. Be careful of the screen and little o-rings that
come out with it.
Is this a dealer part or can I get it at a local parts store, I don't
mind taking it to the dealer but I know that they will check the hell
out of it for hours and I'll get a 2 or 3 hundred or bill for a $10
part, as it is I'm very surprised at all the things going wrong with a
32k mile truck, now the thing will not go into auto 4 wheel drive, have
to push the button 10 or 20 times and some times it really feels like I
in full time 4 wheel.
Thanks for the help
Thanks Derek, pulled the hose off and gas came out of the hose, started
the truck let it run , went out for a ride , got some lunch started
fine, guess I'll replace it someone warned about springs and nuts and
bolts coming out so I guess I'll have to be careful
IIIRC the dealer wanted $80-$100. I got mine from NAPA for about 1/2
that. The problem with the NAPA one was the vacuum line nipple
diameter was too small so I have to zip tie the vacuum line on or else
it would fall off. My want to get a GM one from one of the online
vendors to avoid a vacuum leak.
Be careful as there is a small o-ring that can easily get into the
I'm a shadetree at best so your milage may vary... Is it possible that the
ECT (engine coolant temp sensor) is false reading a rich condition thereby
cutting fuel trim? I have seen this on more than one vehicle with the exact
same issues. If you don't find that there's a fuel pressure problem, you
may want to try unplugging the ECT next time it won't turn over. When you
force the computer into limp mode, if it starts, it may point to being as
bad ECT. I know that ECTs traditionally don't always show codes unless it's
a dead short (more than likely is that the sensor gets lazy from a wonky
thermositor? Do-hickey. Again, this may not be a needle in a haystack for
you but as a reference, it certainly won't hurt. I would definitely force
limp if the vehicle isn't starting - at least you could outrule just about
any of the 5V feedback sensors pretty quickly.
Thanks and good luck.
On 10/31/07 5:09 PM, in article 2007103118092375249-theoven@myplacecom, "Pop
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