20 Most Recent 1999 Chevrolet Silverado 1500 Questions & Answers


I have a 99 Galant 2.4LL4 that turns over but want start I pulled the fuel pump and it's ok I checked the fuses they seem fine what should look at next?

check the cam shaft sensor and the crankshaft sensors check the distriboter and ignition coils
7/15/2021 7:21:59 PM • 1999 Chevrolet... • Answered on Jul 15, 2021

What controls the inside interior lights

Voltage to the coil of the courtesy lamp relay, dome, reading lamp, courtesy lamps, cargo Lamp, instrument panel (IP) compartment lamp and the underhood lamp is supplied from the Inadvertent power relay on CKT 1732. The inadvertent power relay receives voltage from the CTSY LP fuse which is hot at all times. Ground for the courtesy lamps goes through the courtesy lamp relay. Both relays are controlled by the body control module (BCM) based on inputs from door jamb switch, dome lamp switch or door handle switch. The BCM will supply a ground to the courtesy lamp relay when closing any one of the above switches to ground. Ground for the reading lamp, cargo lamp, IP compartment lamp and the underhood lamp is supplied by its own ground.
6/11/2021 10:30:30 PM • 1999 Chevrolet... • Answered on Jun 11, 2021

1999 chevy silverado actuator door is stuck blowing heat instead of cold air

It is likely that you'll need to replace the temp door actuator, more likely it is bad than the temp control.
6/10/2021 1:04:59 PM • 1999 Chevrolet... • Answered on Jun 10, 2021

2wd 4.8l. What caused turn signals to stop flashing?

usually under the dash on drivers side
5/24/2021 7:29:37 AM • 1999 Chevrolet... • Answered on May 24, 2021

99 silverado--occasionally when starting the

Your best bet , take to a qualified repair shop that has proper diagnostic testing tool DTC B2725 ATC Mode Switch Circuit Malfunction DTC C0300 Rear Speed Sensor Malfunction DTC C0305 Front Speed Sensor Malfunction DTC C0308 Motor A/B Circuit Low DTC C0309 Motor A/B Circuit High DTC C0310 Motor A/B Circuit Open DTC C0315 Motor Ground Circuit Open DTC C0323 T-Case Lock Circuit Low DTC C0324 T-Case Lock Circuit High DTC C0327 Encoder Circuit Malfunction DTC C0367 Front Axle Control Circuit High DTC C0374 General System Malfunction DTC C0376 Front/Rear Shaft Speed Mismatch DTC C0387 Unable to Perform Shift DTC C0550 ECU Malfunction DTC C0611 VIN Information Error
4/19/2021 1:45:20 AM • 1999 Chevrolet... • Answered on Apr 19, 2021

Instructions and diagrams for replacing clutch on 1999 Chevrolet Silverado 1500 4wd

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4/18/2021 8:08:49 PM • 1999 Chevrolet... • Answered on Apr 18, 2021

1999 Silverado 1500 Headlights will not turn off

Turn the headlight switch to the off position (not auto) and depress the overhead light button, located just below the cargo light switch, several times ( 3-5 times) until you hear a bell then the headlight switch actually works as indications show around the knob.
2/1/2021 5:45:43 AM • 1999 Chevrolet... • Answered on Feb 01, 2021

My gauges are surging crazy 1999 chevy silverado

Bad ground issue .
1/26/2021 3:40:18 PM • 1999 Chevrolet... • Answered on Jan 26, 2021

Why would my service engine soon light be on

  • Hi, I can help.
  • The service Engine Light Soon light means it's time for an oil change,

  • You can turn this light off real quick by following these steps.
  1. Turn the key to ACC.
  2. Press the gas pedal down all the was three times in fairly rapid succession.
  3. The service engine soon light will begin to blink and then disappear.
  4. Turn the key to off.
  5. now start your truck.
  6. The light will now be off.
  • This should be done after every oil change.
  • All the light means is that the PCM has indicated that you have driven the required miles for an oil change. A reminder light if you will.

  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Regards, Tony
10/17/2020 2:11:49 PM • 1999 Chevrolet... • Answered on Oct 17, 2020

5.3 L Missing and Rough Idle Intermittently

i have a 2001 chevy z-71 5.3L. I keep getting a random/multiple misfire code for cylinder 1 . I have replaced plugs, wires, coil pack(only on #1 cylinder)., and fuel pump. I still keep getting the cylinder 1 misfire code. I put truck on a scanner and watched the cylinders. # 1 misfires at idle but quickly stops misfiring at around 1000 rpms. you can here the engine miss at idle but truck runs great on road . anyone else ever had this problem?
9/26/2020 8:49:55 PM • 1999 Chevrolet... • Answered on Sep 26, 2020

No spark on passenger side cylinders on a 1999 Silverado 5.3 L.

check an clean the ground on the head that is not firing
11/27/2019 6:03:49 AM • 1999 Chevrolet... • Answered on Nov 27, 2019

Radio keeps scanning wont stop

On the steering wheel is the hand controls. Scanning is stuck because of dirt or something. Push the buttons, blow out dirt, wash it off. Mine worked fine after that. (How annoying up til then though. Hope this works. Russ Werth Bowman ND
11/3/2019 4:13:17 PM • 1999 Chevrolet... • Answered on Nov 03, 2019

I'm trying to bypass security code on.my 99 Silverado already tried the ten min thing help please

What is the CODE for.? The radio anti theft code.? I know that with my old Honda Accord the dealer had the code archived in their system. I changed my battery and had to have the code to put in the radio.. I called the car dealership that sold me the car. All I had to do was give them my information and they looked up the code ID..
I would imagine that GM automobiles work the same way. I hope this helps you..
10/30/2019 5:35:12 PM • 1999 Chevrolet... • Answered on Oct 30, 2019

98 chevy k1500 cruse control


Appreciate the "Ask Me".

To my knowledge, Cruise Control would be relatively difficult to diagnose without a scan tool attached to the control module to read the error codes. Additionally, car versions in my country seldom have such a device since our roads are narrower and travel distance is not that great.

Though most known causes are:
  • the connector to the module;
  • loose brake pedal/switch;
  • loose clutch pedal/switch (for manual transmission);
  • vacuum line to actuator (most likely), vacuum actuator, diaphragm, control valve.
Other possible components to check are:
  • the control module itself (bolted to the firewall);
  • control cable or linkage;
  • speedometer sensor;
  • steering wheel controls switches;
  • throttle position sensor.
As posted above, quite a number of possibilities. Any other indications, speedometer OK; abnormal throttle responses; abnormal idling, brake light always ON, slack in the accelerator/gas pedal? Was it cutting in/out before? Was there any recent repair work done on the engine before the cruise control cut out?

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.
9/20/2018 4:15:49 PM • 1999 Chevrolet... • Answered on Sep 20, 2018

Why is my front end locking up and grinding on 99 silverado?

drain the oil from the front diff and check for metal flakes If you have flakes --diff problems if the oil is clean then look else where --like cv joints or "U" joints in drive shafts
8/25/2018 7:01:46 AM • 1999 Chevrolet... • Answered on Aug 25, 2018

1999 Chevrolet Silverado 5.3l a/c is cold while sitting still idling but once you start driving is not as cold can't figure out what's wrong?

Just for fun,clamp off the heater hoses,just squeeze them flat in place to stop the hot coolant flow through the heater core.Take it for a spin and see if the a/c stays cold.Sometimes with increased hot coolant flow through the heater core with increased engine rpm (driving) and a leaky air flow door in the a/c heater assembly,it can be hard to keep the a/c air cold.
6/28/2018 6:56:27 AM • 1999 Chevrolet... • Answered on Jun 28, 2018

I have a 1999 chevy

This is an extremely difficult problem you have the biggest issue is the door won't open .I'm guessing you have a key less entry system if so can you hear the motor move for the lock in the door dose it have power dose the window work up and down . This will tell you if the problem is electrical or mechanical if the motor is bad you will hear nothing if the clip broke or popped off.it will make noise. Worse case you will have to take the other door apart take a close look at how it works then drill a hole in the broken door from the inside at a spot ware you can talk a screw driver and manually pop the lock open. Well I didn't say it would be easy but if you look closely anyone could do it.
3/23/2018 2:05:45 AM • 1999 Chevrolet... • Answered on Mar 23, 2018

Abs hydraulic unit chevy truck

The ABS unit should have the connection IDs embossed into the casting at every line connection.You are going to HAVE TO determine every connection line going to every component to make this work.
3/21/2018 12:07:36 AM • 1999 Chevrolet... • Answered on Mar 21, 2018
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