Without testing hard to say . Do you know anything about automotive electrical systems , OBD 2 engine management system ? IAC - idle air control ? What engine sensor data is ? Hooking up a professional type scanner , reading DTC'S etc.... How to test electrical circuits using a DVOM - digital volt ohm meter ?
007 Idle Speed Problems Scan Data for Idle
You will have to retrieve the engine faulty code with a scanner to see.
Explaining in some case when the PCM (Powertrain Control Module) sense a problem for some code it will deactivate the TRACTION system for security.
I believe there is a faulty code after the code is solved then erase all codes and try again. The TRACTION light should be back on.
Hope it helps.
replaced front and back brakes already ??? This has nothing to do with the ABS ,traction control is part of the anti-lock brake system . Light's on DTC'S - diagnostic trouble codes stored in the ABS control module . Sorry but , your best bet ,take your vehicle to a qualified repair shop , before you hurt yourself. Take's year's to learn how to diagnose these electronic control systems
May be a burned out exhaust valve.
Fix requires pulling head and valve job. May be expensive depending on the engine and not worth it for the age of the car.
The Trac off and abs lights being on together are a related problem. With your check engine light on shop should be able to tell what is wrong. Go to AutoZone or similar and have them scanned the computer for codes then get a new shop
Before listening to someone telling you to replace plugs & wires an filter an injector cleaner etc. An when that doesn't fix the problem they say the MAF sensor or coolant temp sensor ,throttle position sensor . Spend a 100 bucks for diagnostics an then know for sure whats wrong . So many sensors an electronic's on you vehicle . See this guy above isn't a tech . back yard shade tree probably . He is all ready telling change the filter an if that doesn't work change the plug's an wires an this an that .
Have scan data checked first ,before replacing any parts . I have thirty years experience , Dealer ship , independent repair shop , own shop , mobile diagnostic tech . I charge $24.50 to hook up scan tool ,factory scan tool , an view engine sensor data . Could most likely be a bad or dirty mass air flow sensor . O2 sensor .
002 Fuel System Tests Start Here
Ground for the headlamps on your vehicle are after the turn/ headlamp / wiper switch . No grounds under the hood . ground G-201 is the ground point for the headlamps .
G201
On the left side of the IP, near the fuse block
you should look at a wiring diagram ! You can view one here at
http://www.bbbind.com/free_tsb.html
There is a left an a right headlamp fuse located in the under hood junction block (fusebox) B+ voltage from that fuse goese directly to the headlamps from the headlamps goes back to the junction block (internal ) from there to the headlamp switch , ground is through the switch to G- 201 . Find the problem with voltage drop testing . Watch this video . Between the left headlamp an ground you have a high resistance problem . Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
How about the heater core hoses - are they hot when engine is warm? If they are, the problem is probably the air mix door actuator in the HVAC box. If they aren't, the water pump is not doing it's job or you have a plugged line.
Check the transmission fluid level. Also check the rear differential if your car has one ( I think the 99's were still rear wheel drive) for fluid. If either of these are low, the fact that things are fine indicates that the low fluid level is causing problems. Also, the trans fluid should be a nice pink color. If it isn't then the transmission is not in good shape and should be looked at again by the rebuilder. If the fluid levels are fine, have the rebuilder check the trans again to see if he missed something.
The issue with the temp gauge is entirely separate except if you mean that the car begins to heat up when the shifting problems are occurring. If the temp gauge goes way up then comes down quickly regardless of how the car is being driven, the thermostat may be sticking and should be replaced. If the car is hard to drive and then starts overheating, the transmission may well be defective and causing the engine to work harder than it should.
It sounds like the brake pads are metal to metal, when you turn the flexing of the wheel makes them touch the rotor and grind. This can rarely be caused by a badly worn wheel bearing as well, have both brakes and wheel bearing inspected.