Q: Too little flow on the EGR.

If your engine is going to have to be replaced due to using too much oil, then you may choose to try and use thicker oil (https://www.yourmechanic.com/article/why-does-motor-oil-viscosity-matter). I would not recommend it, but it is your choice. You could go...

The idle is computer controlled on your car and over time, your engine computer adapts to changes in your engine over time. When your battery is disconnected or goes dead, the computer will reset and go back to factory settings....

Hey there, thanks for writing in about your 1987 Chevrolet Cavalier. As you may already know, your car needs air, fuel, and spark to start. You have covered most of that already. If it is not getting spark, start by...

This is a common sign of a bad or worn wheel bearing (https://www.yourmechanic.com/services/wheel-bearings-replacement). When wheel bearings wear out or become damaged due to dirt or debris or lack of proper amount of grease, they can make a rubbing, grinding or...

Hi there. This is a common problem on this engine. If the housing is cracked then the entire intake manifold needs to be replaced as an assembly. There is no repair that will ensure that it will not leak any...

In order to isolate the hard engine start (https://www.yourmechanic.com/services/car-is-hard-to-start-inspection) the first test will need to be a fuel pressure and leak down test to see if the pressure is within specifications when the key is turned on and the pressure...

Hello there, squeaking brakes can be caused my many different faults on your 2008 Volvo XC90. The most common causes are the improper brake pad material. There are two different kinds of brake pad material that are common, semi-metallic, and...

Hi there - this transmission (5L40E) has problems with valve body wear in higher mileage vehicles that can manifest itself in some of the behaviors you describe. This is due to hydraulic pressure not being high enough for complete, rapid...

Without knowing the exact setup done with the new carburetors I would suspect there is a carburetor setup issue and may need adjustments to the idle jets sizes since it may be running too lean or too rich at idle....