20 Most Recent 1990 Chevrolet Lumina Questions & Answers

Stalling and running rich. I have seen this before on a Camero. The fuel pump was weak. Not making enough pressure. This caused the fuel injector to DRIP gas instead of SPRAY gas. This caused the fuel to flow into the cylinder in a liquid form, and it did not burn well. We put in a new fuel pump and the car came to life. Good luck.

so the car wont start at all or jus wont idle?

I just did that last week. Remove horn, remove steering wheel, remove blinker switches, remove tilt spring, remove tilt mechanism, remove key buzzer switch (mine was white with 2 small wires leading to it). Screw holding ignition cylinder in should now be visible. P S Let me know if you have any trouble removing all the items listed above and I will try to help.

Any brand of antifreeze will work. Depending on the coldest temperature the car will see, the mixture with water varies. The label will have a table on it that will tell you how to mix it with water.

Check for a vaccum leak

On most models, you can disconnect the dogbone mount and pull the engine forward a few inches. Make sure the parking brake is set and the trans is in neutral. Also may help to remove the air filter assembly.

Does the door latch have a child safety lock feature? Check to make sure it wasn't accidentally activated, preventing the latch from opening.

Most likely the starter, does it seem to drag when starting? Other things could be the coil or ignition module.

Does Lumina sedan have rear seat pass thru to trunk ?? if sedan then a pull tab will be in seat upholstery near shelf / by rear window . pull it crawl in with Light Plus friend on outside to hand tools .. IF VAN must remove interior panels to gain access .. Try small thin needle nose pliers to pick broken KEY Piece out of lock 1 ST . if successful spray in Lubricant before trying another key . BUT must be reason lock jammed -- Frozen by weather change or Mechanism Disconnected due to lack of lubrication or worse Plastic Parts used in assembly by Factory .. DRILLING Lock Out will get it Open but new / used parts to repair are now on your shopping list ..

1990 requires R12 freon which is no longer available. Need to retro fit the vehicle for R134a. Take it to a shop.

,your oil filter is in the front of the engine, if you look down where fan is ,first your radiator then the fan you will see the oil filter coming out of front of engine

Make sure your cooling fan is coming on ,if you force the ac on that should make the fan come on after a minute or so if the fan comes on with the ac the problem is either the coolant sensor or the fan motor is going bad

some of these have a battery cover that needs to be removed to get to the terminals and some don`t the terminals are on the side of the battery not on top.

You should have posted BEFORE throwing parts at it. More likely to be CTS (yellow wire, black wire) I believe by therm hsg on your car.

On steering rack

On the Lumina in the early 90's the blower is under the RIGHT SIDE of the dash, by the passenger's feet behind that shroud and up behind the panel of relays. it's a chore to get to without removing most of the dash but it can be done.

it sounds like an auxcillary drive which isnt used on that model engine ,undo and replace the gasket