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Car is leaking coolant and overheating
You should not let the engine ever run low on coolant. When you get the system checked the mechanic will pressure test the cooling system and locate the leak or problem for you. You should not have a hot engine...
Top radiator hose is cold while the lower is hot
You may be correct that the thermostat is stuck closed. One way to test a thermostat is to put it in a pot of water and bring the water temperature up to the thermostat opening temperature. This is imprinted on...
Rear Suspension/shocks
Thanks for taking time to write into us today in regards to your 1993 Chevrolet Lumina. The fact that your suspension bars are hanging and that the supports have rusted off is a pretty good indication that it may be...
rough shifting high idle
Hello. This can be caused by a few different things. Most of the time it is caused by the needs for a tune-up or a fuel system problem. Both of these will cause the car to run this way. I...
Tire interchange
No, the most important thing when changing tire or wheel size, is to keep the overall diameter the same. 205/70/15 is 26.3 inches and 205/60/15 is 24.7 inches. When you change the diameter, the final drive gear ratio is changed....
can a heater core prevent, air conditioning, from blowing cold?
The heater core will not cause the A/C to not blow cold. If your A/C is working properly with the correct amount of Freon, then you may have a temperature blend door not working and staying on heat mode. If...
Stalls then dies.
Hey there, thanks for writing in about your 1999 Chevy Lumina. The problem sounds like your fuel pump is going bad and getting worse over time. In order to verify the problem the fuel pressure would need to be checked...
motor mount replacement at home
Hello. Depending on what engine you have, the type of transmission in the van, and which mount you are replacing will determine the mount replacement procedure. You may have to drop the subframe to remove the mount you need to...
ALL THIS EVEN WITH NEW FUEL PUMP! I've had it in for over a month and the problem is still on going.
Sounds like you have a wiring issue. Most likely a broken wire somewhere in the harness. It could be at any circuit - fuel, ignition, or ECU. Sounds like something that a specialist should take a look at. It might...
Electric problem
Hello there, many faults will cause your 1998 Chevrolet Lumina to lose power and die after 30 minutes. The most common would be the fuel pump, engine control module, alternator, battery, wiring harness fault, coil, distributor, or a shorted wire....
Sometimes my car starts immediately and sometimes it takes between 5 and 10 tries.
Your mechanic's diagnosis and explanation could well be correct. This is classic symptom behavior of a failing ignition switch. The contacts become "burned" over time and over lots of "start" cycles. The repair is to replace the ignition switch. ...
Cooling System - 1996 Chevrolet Lumina
Hey there. For your model Chevy Lumina, there are two aftermarket available options for radiators. The main difference is the core of the radiator. They are usually available in 1" or 5/8" cores. Without looking at your car it may...
I have a slight wobble in crank shaft pulley will replacing it fix my problem? Its a 2000 lumina with 76,000 miles. thank you
Hello. The crankshaft pulley and harmonic balancer is one unit on your vehicle. There is a strip of rubber that separates the two components, that will perish over time. This is typically why it begins to wobble. You will need...
Where are the pivot nuts on my wiper arm for a 1998 chevy lumina car
Hey there, thanks for writing in. These should be located right at the base of the wiper blade arm where they connect to the spline gear. If you need help with wiper arm(s) replacements, a certified technician from YourMechanic can...
Why does my car go dead while driving or when I crank it up?
Hi, thanks for writing in. This can happen for many reasons. If the car is stalling while driving this could be anything from electrical or charging issues to a lack of fuel or air which can be very difficult to...
How to set the cams
The setup for the cam gears and timing belt is a very detailed process. Some gear types require a shim kit to apply the right fit clearance between cam gear and camshaft. This particular motor also requires special tools to...
Tools needed to change rear brake cylinder
To replace the brake cylinders, you will need a brake pliers and brake spoon. To bleed the brakes you will need a manual brake bleeder tool. The rest is going to be regular metric hand tools. Make sure to do...
My car cranks but won't start.
Hello. Wiring from the ECU to the engine should be checked. If no signal is getting to the ignition module, there can be a short in the engine harness or a bad ECU. If you need help having this addressed,...
The car runs fine some days,then other days it wont..
Hi there. Many different faults will cause your 1999 Chevrolet Lumina to run poorly, sputter, and stall. The most common would be a vacuum leak, spark plugs, exhaust leak, oxygen sensors, cap & rotor, or distributor. To have the problem...
Engine quits intermittently, apparent electrical problem
Hi there, thanks for writing in. The fact that the vehicle loses all power and the clock resets then that tells me that is it completely losing connection from the battery. Most of the time this is caused by either...

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