Top 20 2002 Chevrolet Impala Questions & Answers

On left hand side of the steering wheel you have a manual light switch that controls the dash lights for dim and brighter by turning the switch right or left, or you will have a wheel like switch next to it which could be the control that goes up to brighten and down to dim. Either type is a rheostat type switch, to lower the lights it decreases the current to brighten the lights the current is increased. if the contacts are worn or dirty it could interfere with the current control. Sometimes you can just go from left to right or up and down and clean the contacts to work. Other wise it time to replace the switch

Middles, criss cross out to the corners. Finger tight using the socket bar only, then a bit tighter, and then final torque tight.

Check the wiring to make sure it hasn't been damaged because of rodents or if it's been done wrong. Check the power and ground wires to the coil pack and make sure they're connected properly. If all of this is good check the relays and also the crankshaft sensor again. If all of this is good the likely cause for it not starting is the ICM (Ignition Control Module).

Centre console

I would check the fuses first. Headlights are typically on a separate fuse then the parking lights. If the fuse is fine check and see if the Bulb is burnt out but it is rare for both lights to go out at the same time.

Fuels, petrol or diesel, are known as hydrocarbon (hydrogen and carbon) fuels and so when burned in air (oxygen) one of the resulting products is a considerable amount of H2O or water. Mostly this is expelled through the exhaust as vapour but at certain times, such as when the air is cold and dry and the engine and exhaust system is cool, the vapor will condense and emerge as steam and water droplets. When a vehicle has lots of short journeys, the exhaust can become waterlogged where the silencers can retain a great deal of water and are likely to be spitting water droplets almost continuously. Often the sound at the tailpipe will be more harsh than usual. Some manufacturers have a small hole at the lowest point of a silencer to allow surplus water to drain away and sometimes a mechanic will drill a hole... Spitting water and emitting steam is often seen as a sign of a failing head gasket and the confusion is understandable as it is a natural function and could be a symptom of head gasket trouble but it is a symptom that should not warrant much attention in isolation - clearly if a failing head gasket is the source of water spitting from the tailpipe, the coolant level will be mysteriously falling without obvious leakage and often the engine will suffer a misfire on starting...

Here are 2 links,one from Autozone that shows you what it look's like,the other on how to replace it.https://www.autozone.com/batteries-starting-and-charging/neutral-safety-switch/duralast-neutral-safety-switch/476559_0_0,here's the repair guide.https://itstillruns.com/replace-safety-switch-2002-impala-7890889.html

Have the OBD read as this will give you the codes for any problems, I would think it's ignition related but OBD will narrow down the fault

I think you could use this manual method instead.. My nephew used it to repair my car and it's totally perfectly fine now. Here's the website he bought it from. www.reliable-store.com

If you've replaced the sensor, then you've got a connector or wiring harness issue.

Did you do a good visual inspection of the headlight area for anything obvious? Perhaps the crash jacked up your wiring. If you had to jimmy the switch to get high beams to work, that tells me the switch could be the problem. Take a look at a wiring diagram and do some basic troubleshooting if you have a multimeter. Here is a link with a couple of diagrams and suggestions that were given to another person with this problem. The headlight on my 2002 impala quit working All fuses are

Sorry ta have ta tell ya but it's a cat, best take to ya chevy dealer to take a look and they will sort it out fer ya for around $50.

A couple of things. Your thermostat could be stuck or you have air i your coolant system. Bleed your coolant system. If the coolant is low, you can also have that issue so check for a coolant leak. If you check your oil and it looks like chocolate milk, then you could have a blown head gasket. Check all of these first.

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Here's how it really works mechanics technicians dude I've been on short for 11 years and we tell people at Haven in this is all going to be done and and three hours you know you really hope it will get done like that but sometimes it may take another hour and a half because you never know what you may face going into the job but I wouldn't panic I just give them for hours and just go watch a movie or something or go help somebody something good

Contact the dealership parts department give them the vin number and they can give you the info you seek!

Fan #2 should only come on if the A/C is on or the engine temperature gets over 200-205 degrees.

Just replacing part's because that's what you think is wrong isn't the proper way to do auto repair . Testing vehicle electrical an mechanical system's an cumputer systems is the proper way to diagnose vehicle problems . Your best bet , take your vehicle to a qualified repair shop , because you have no clue .

the first thing to do is check the filter in the fuel tank/pump assembely is not clogged up its part of the fuel pump module

Use a flex head ratchet wrench to remove the seat, or temporary battery to power the seat, non power seat will fit but disabling you side air bag will shut down the whole SRS, and no air bags will work, this is against the law in some states If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_4c166ba81493f541