20 Most Recent 1999 Chevrolet Tahoe - Page 6 Questions & Answers


Replace the master cylinder.

1999 Chevrolet... | Answered on Dec 01, 2014


This is not good and could be very dangerous. Likely causes are leaky fuel injector(s), engine mechanical problem such as bent or burt valve, hole in piston, mis-fire on one or more cylinders, and others. Gas in the oil can cause major engine problems. Do not try to run engine until fixed.

1999 Chevrolet... | Answered on Nov 25, 2014


Check fuses. Check that wiring to cluster is fully engaged. Both these get their 12 volt feed from the same wire, and then the sending units provide the grounds.

1999 Chevrolet... | Answered on Nov 25, 2014


Most likely the ignition switch. But could be an electrical short. If you unplug the switch and it stops. Replace the switch. If it doesn't, then you will have to find the short in the wiring.

1999 Chevrolet... | Answered on Nov 12, 2014


get a Chilton's manual for your vehicle so you can do your own repairs.

1999 Chevrolet... | Answered on Oct 31, 2014


Seriously? How about some more details...

1999 Chevrolet... | Answered on Oct 28, 2014


Could be the light sensor on the top of the dash, below the defrost grill. ( it pops off). Could be wiring, could be the body control module. If the lights come on with the switch, I wouldn't worry about it. Sensor is cheap, wiring is a pain to track down, IE remove the dash. And the BCM is costly and it needs programmed (dealer only)

1999 Chevrolet... | Answered on Oct 26, 2014


It's a GM common problem . it is the fuel gauge Inside fuel tank

hope it helps

1999 Chevrolet... | Answered on Oct 24, 2014


if I understand you it is the PRNDL switch on side of transmission water intrusion.

hope it helps

1999 Chevrolet... | Answered on Oct 24, 2014


This could be a wheel speed sensor. The ABS module does not do a rationality test to sensors. This must be monitored by a scanner WHEN acting up as they send information to the controller which makes the decision if the car has traction or not one of the sensors is sending false data. this happens at low speeds 15 mph or less . the controller does not tag it as a bad reading because it is random even during your brake application. As for the transmission not shifting this also can be a bad sensor on the transfer case output shaft. Does speedo act crazy during this shifting problem. check for loose ground straps.

1999 Chevrolet... | Answered on Oct 13, 2014


There are screws to adjust headlights located very tightly against the headlight itself. One for elevation, and one for right-to-left.

1999 Chevrolet... | Answered on Oct 03, 2014


there is rubber gasket around caliper piston,to return the piston inside caliper,it is probably dried out or too old and won't return ,time for new caliper

1999 Chevrolet... | Answered on Oct 01, 2014


If your talking about the fan on the water pump,, 2 ways,,, pair of needle nose vise grips and clamp the pulley from behind so it cant turn then use the proper size wrench to loosen the large nut CCW,, i think its a 32mm. Or if you have access to a hand held air hammer with a flat chisel head put it on the egde of the nut to loosen,, this works great,,all it takes is a second to break it loose,,,, leave the belt on while loosening to hold the pulley using this method,, you can also leave the belt on using the vise grips to ,,but you might have to replace the belt if you damage it,, wrap a little black tape or somthing simular around the vise jaws

1999 Chevrolet... | Answered on Sep 28, 2014


Ground a test light and probe the wire the wire that lights the test light is positive. if this was helpful please leave good feed back

1999 Chevrolet... | Answered on Sep 18, 2014


Could be the pressure regulator on the fuel rail. Pull the vacuum line off the regulator and check it for fuel contamination. There should not be gas in the line. If there is fuel in that line the regulator is bad and needs replaced.

1999 Chevrolet... | Answered on Sep 16, 2014


These sensors are prone to have rust lift the sensor up in its bore causing a below signal at low speeds. If you have access to a scanner with abs data, you can view the wheel speed of each wheel as you slow down and see which one is out of sync. If you do not have access to this equipment you can still check the sensors. You will need a volt meter that has ac millivolts. To do this folow the following procedures. 1.Raise and support the vehicle. 2. Disconnect both the front wheel speed sensor connectors at the frame and harness. 3. Place a Digital Volt Meter (DVM) across the terminals of each wheel speed sensor connector. 4. Rotate the wheel clockwise approximately one revolution per second. The minimum reading should be at least 350 ACmV's. If the reading is less than 350 ACmV's, remove the wheel speed sensor. Refer to the applicable Wheel Speed Sensor Replacement procedure in the ABS sub-section of the Service Manual. 5. Plug the wheel speed sensor bore in order to prevent debris from falling into the hub during service. 6. Clean the wheel speed sensor mounting surface using a wire brush, sand paper, emery cloth, scotch brite, or other suitable material. Be sure to thoroughly clean the wheel speed sensor surface. There should be no rust or corrosion. 7. Check the sensor head to determine if it has been warped/distorted due to the corrosion build up or other causes. Check the mounting surface on the sensor head for flatness by placing it on the edge of a metal machinists scale or other suitable straight edge to measure the flatness. Check the sensor for flatness in multiple (minimum 3) positions/directions. If the sensor head is distorted, replace the sensor. 8. Apply (spray) two thin coats of the specified rust penetrating lubricant (corrosion inhibitor) to the complete sensor mounting surface on the bearing hub. Allow to dry for 3-5 minutes between coats. Use ONLY Rust Penetrating Lubricant, P/N 89022217 (in Canada, P/N 89022218). 9. When the corrosion inhibitor is dry to the touch (about 10 minutes), apply a thin layer of bearing grease to the hub surface and sensor O-ring prior to sensor installation. Use ONLY Wheel Bearing Lubricant, P/N 01051344 (in Canada, P/N 993037). 10. Install either the original sensor or a new one in the hub. Ensure that the sensor is seated flush against the hub. Refer to the applicable Wheel Speed Sensor Replacement procedure in the ABS sub-section of the Service Manual. 11. Place the DVM across the sensor terminals and recheck the voltage while rotating the wheel. The voltage should now read at least 350 ACmV's.

1999 Chevrolet... | Answered on Aug 31, 2014


po571 problem code-- Cruise Control / Brake Switch "A" Circuit. There are so many things that can go wrong. The best bet is to take it to the dealer for a diagnosis. Because it will cost you, if you keep changing parts to repair it. Good-Day!

1999 Chevrolet... | Answered on Aug 25, 2014


If ur onstar was enabled, onstar can track the location 4 u. Otherwise unless u had lo jack or a similar aftermarket device installed, u r out of luck

1999 Chevrolet... | Answered on Aug 17, 2014


If the relay had been loose in the fuse box that can cause the melting. i've seen fuse panels where the conectors are actualy loose in the box so as you push relay in it is actualy forcing the connector out the bottom of the box. use a small screwdriver to push down gently on each connector in the fuse box to see if this is whats happening. relay are plentiful at the local wrecking yard or buy new. the either work, dont work os sometimes stick on. this will cause battery drain overnight . if the connector is loose in the box you'll have to lift the whole fuse box to try to push it back in. if it wont stay in the fuse box may have melted and will need replacing unless u can handle moving all the wires to another relay spot if the box will allow it

1999 Chevrolet... | Answered on Aug 15, 2014

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