Question about 2001 Chevrolet Impala

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2001 chevy impala quits near idle when driving, has new fuel pump crank sensor checked all wire harness conection still quits but not all the time

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Ive found many of these cars with this problem, first remove vacuum hose form fuel preasure regulator this is located on injector rail, start car and see if gas is leaking from fitting for vac hose , if so replace regulator, the next thing is to make sure the throtle body is clean, use throtlebody cleaner and tooth brush to clean, and last would be the idle air control valve, this valve keeps the idle and adjusts it when needed. hope this helps,

Posted on Aug 31, 2010

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Posted on Jan 02, 2017

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I put a new fuel pump in a 2000 impala and it still want crank


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2001 Chevy Impala 3.4 I just replaced the fuel pump and now when I turn the vehicle over it backfires and will not start what would cause this


Why did you replace the fuel pump? Sounds like that might not have been the issue. Timing is what causes a back fire. The timing could be off from the crank sensor or it could be a lot of other things.

Aug 02, 2014 | 2001 Chevrolet Impala

1 Answer

I have a 2000 Chevy Impala and my car only stay crank if my foot is on the gas, when I release , it shuts off. It's not the mass air flow sensor or fuel pump what can it be??


Inspect, clean or replace the Idle Air control valve...about $35 for the part...also how is the air filter? A clogged catalytic converter can cause this too? ( A free check at quality muffler shops. Hope this helps.

Mar 16, 2012 | 2000 Chevrolet Impala

1 Answer

Engine will just keep cranking,stutter at times even die while driving, have replaced fuel pump, o2 sensors, now have found its more than likely crankshaft position sensor, I'm not sure where it is...


Quite often the crank angle sensor is located at the front of the engine down near the bottom pulley that sits on the end of the crank. You should see (under the grime :) ) a small sensor with a pigtail leading to wiring harness. This should be your crank angle sensor.
It might be far easier to get your vehicle checked either via a diagnostic or sometimes you can put a loop back wire in to generate basic codes. This of course depends upon the system OBD or OBDII
Then you read the codes which are usually the amount of times the engine check light blinks or similar and you then check that code against a code list. Most good workshop manuals will have code lists and information on how to check your codes.

Aug 01, 2011 | Jeep Grand Cherokee Cars & Trucks

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2001 chevy impala i keep replacing the fuel filter, once 6 months ago, and 2 more times the last 2 weeks, and using injector cleaner, but i still am bucking like a horse and stalling


You need to determine if fuel is your problem-have the pressure tested at the fuel rail to see if it is within specifications with regard to PSI. Once you establish it is good, look for an ignition problem-bad coils, wires, distributor cap (you do not mention which engine you have , the 3.4 or the 3.8)-your problem really sounds like an ignition problem and it could be anything mentioned plus a failing crank sensor or cam sensor-check pressure first to determine if it is good, if so, start with a good tuneup including replacing plugs, the wires and maybe coil packs/distributor cap/rotor, clean the connectors at the crank sensor and cam sensor. Check the connection at the MAP sensor too, you never know...

Jul 07, 2011 | 2001 Chevrolet Impala

2 Answers

Why does the gas guage not register how much gas is in the tank of our 2001 Chevy Impala?


This could be due to a faulty fuel sensor in the fuel tank try draining the fuel tank and replacing the sensor.

Jun 22, 2010 | 2001 Chevrolet Impala

1 Answer

How do you check voltage on the fuel pump on a 2001 Chevy Silverado, was driving engine stalled but regained power drove three more miles and it quit running, I have spark but no fuel. Trying to check out...


Hello Dennis.
When you are checking fuel pump voltage on your pickup when you turn on the key the voltage is only applied to the pump for a couple of seconds unless you go to cranking position.
There are 4 wires leading to the fuel pump on your truck. The gray wire is the 12 volt positive power feed to the fuel pump and the black provides the ground. The orange and purple wires are your fuel gauge wires.
The relay for the fuel pump is in your under hood fuse panel and I believe is marked on the underside of the fuse panel cover. It should click on and off again quickly when you turn the key to "on". Having a helper to cycle the key would be handy while you put your finger on the relay and listen to it. Just because it clicks still doesn't mean it's functional but relay failure on these models is somewhat rare.
I would start by checking for power at the fuel pump harness.
Fuel pump issues are quite common on these model year trucks.
Hope this helps you out.

Nov 28, 2009 | 2001 Chevrolet Silverado 1500

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