Question about 1997 Chevrolet K1500

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My 1997 chevy ck1500 has always run perfect until now. It starts fine, but stalls out at lights after i accelerate to move forward again. If I let it rest a minute, it runs for a day or so with no pro

1997 ck1500, 5.7 ltre, extended cab. Regular maintenance and plus fuel since birth. 280,000 miles. Runs smooth and very quiet until now.

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  • Sid H Wing Oct 24, 2012

    Don't know what more information I can give you. Told you what it's doing and what I have tried?

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  • Chevrolet Master
  • 2,620 Answers

Check your fuel pressure it should be 60-66 psi with switch on engine off.If its less than 55 psi then its to weal and needs replaced.

Posted on Oct 24, 2012

6 Suggested Answers

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Posted on Jan 02, 2017

SOURCE: 2000 chevy runs rough

fuel pressure regulator might b leaking .. pull vacuum line off of it and see if there is fuel.... if soo replace it

Posted on Sep 08, 2008

fknstart
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SOURCE: 2002 Chevy Blazer stalls

check airflo sensor or potentometer,throttle pos sensor; if revs are to low when turning the wheel the power steering pump will draw power from engine, causing your other problems

Posted on Jan 07, 2009

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SOURCE: '99 chevy Silverado Z71,5.3 engine.....will not rev when hot.....

try replacing your EGR Valve, or your Oxygen Sensor

Posted on Feb 10, 2009

  • 58 Answers

SOURCE: check engine light is on, motor runs rough, sometimes stalls

Go to Advance or Auto Zone and have them run an obd scan on it and it will pin point why your light is on and could solve your problem. This is often done for free.

Posted on Apr 12, 2009

Rickygittins
  • 715 Answers

SOURCE: Why the 1500 silverado does run good but stalls

If it is your security system you might want this, and please rate your mechanics help, Have a good day.


GM Passlock I & II Information

Please study the following information carefully WHEN INSTALLING REMOTE START systems on a 1996 or later GM car or truck.
Introduced in 1996, GM has changed the VATS anti theft system to Pass-Lock system. This is a similar device to the VATS system, in that there is a resistor present during the start cycle. However, in the PASSLOCK system, the resistor has been placed inside the ignition switch, instead of the key. See the GM V.A.T.S page for more information.
To remotely start a car with this feature, you must bypass the PASSLOCK system. There are two methods of doing so.. The first, is to permanently bypass this system. This is the easiest method for accomplishing your task. The second way, is to temporarily bypass the PASSLOCK, by introducing relays into the system, which retain all of the features of the system, while allowing your remotes start module to bypass it automatically during a remote start cycle.
Vehicles effected
(1996 and newer): N & J body cars, such as
Pontiac Sunfire and GrandAm Passlock-1
Chevrolet Cavalier Passlock-1
Buick Skylark Passlock-1
Oldsmobile Achieva Passlock-1

1997 or newer
Chevrolet Malibu Passlock-II
Oldsmobile Cutlass Passlock-II

1998 or newer
All trucks , SUVs and Vans Passlock-II

It is important to pay special attention to the fact that there are many different ways of achieving the same goal. There are actually 2 different Passlock-II systems. On the next page, there are tests to establish which type of passlock-II your car has.

Relays shown are standard automotive 5 pin spdt relays, available from IEI.
A multi meter is required to measure the resistance values. Accuracy is important within 5%.

Once the value of the resistor is measured, a resistor of the same value +/-5% must be purchased (Radio Shack, for example). You can also use a Potentiometer (POT), which can be adjusted to the same value of the resistor in the ignition switch.

pslc1.gif Passlock-I bypass procedure....

1: Remove the top and bottom shrouds from the steering column.
2: Find the 3 wire ribbon cable, coming from the ignition switch, containing White, Black, Yellow (Sometimes White, Black, Black). These are THIN wires.
3: Locate the Black 6 position connector on the LEFT side of the steering column, right above the ignition switch position. There is a BLACK (Thin) wire in this connector, called "Bulb Test", which shows Ground with ignition in the Off position, OPEN in the "Run" position, and GROUND in the "Crank" position.
4: Turn the ignition switch to the "Run" position. Do not crank the car.
5: Cut the Thin Yellow wire and strip both ends.
6: Without cutting the Black wire, expose some of the copper.
7: Using the ohmmeter, measure from the Yellow wire (the end coming from the ignition switch), to the exposed Black wire and record the value. Measure more than once to assure you have the right value.
8: Acquire the same size resistor and 3 relays, and perform the connections shown in the diagram below.

pslk2.gif PASSLOCK-II bypass procedure

There are 2 types of Passlock-II systems. To determine which system you have, follow these instructions;

1: Locate two wires, which are THIN and are in the main ignition harness.. Orange/Black (or Black) and Yellow.
2: Cut the Yellow wire, and strip back some of the insulation from the Orange/Black (Or Black) wires.
3: Turn the ignition to the "Run" position ( don't crank the starter). Measure and record the value measured from the KEY SIDE of the Yellow wire, to the Black/Orange wire.
4: Turn the key to the "Crank" position and release. Now read the value again.
pslk3.gif5: If the value changed, follow "Method#1". If the value stayed the same, follow "Method#2".







These diagrams are from our friends at ALARMTEK AUTO ALARM

Posted on Oct 03, 2009

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swng,
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2) Per your description I would look at the ECT sending unit. It sends coolant temperature information the the Engine Control Module for proper fuel delivery for cold engine start. It may have lost its calibration.
Let me know.
Regards,

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