Q: Car running badly after engine rebuild

asked by on February 17, 2016

The car has a fully rebuilt engine. I managed to fix all of the wiring in front of the engine, but under the dashboard is a different story. It was so bad that I had to cut out the aftermarket alarm and kill switch. Before, the car would run for a day, but then it died on me. At first, the idle slowly died down like it was out of gas. I made sure it was filled up and tried to start it. I had to rev the engine to high RPMs to get it to start.

Car starts and then dies Inspection $79.99 - $89.99 Get a Quote

If you are able to start your vehicle and keep it running with high RPM’s the issue may not be with your wiring inside. The issue could still be out in the engine bay area. There are so many variables when dealing with issues such as these. Especially in your case because the engine has been rebuilt, it could be associated with that or an entirely new problem. Things like low fuel pressure, timing issues or misadjusted valve train can cause symptoms like you are describing. My suggestion would be to seek the help of a qualified mechanic to help you figure out why exactly it starts and dies on you and make the necessary repairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

My temperature gauge reads cold - 2004 Chrysler Sebring

Hello there. A few common faults will cause your 2004 Chrysler Sebring to to stay at C on the temperature gauge. The most common are a faulty coolant temperature sensor, failing temperature gauge, or wiring harness fault. If the engine...

Battery light and check engine light on

Hi there, thanks for writing in. I'm happy to help. The battery light will come on if the charging system and battery voltage drops below a minimum set by the factory. The check engine light is letting you know that...

I have a 2007 Nissan Sentra. Today I stupidly put my car in park while going about 7 miles per hour.

Yea, that was a pretty big goof! Just don't do it again. Everybody gets in a hurry and makes that mistake sometime and your car can probably handle it a few times, but when it's too much, the parking pawl...

Error codes P0131 and P0151

Hi there: It would be best for you to review these two links; the first describes what the P0151 OBD-II Trouble Code is and what typically causes it, and second, the P0131 code and what it means.

AC/Heat not working anymore

This is a common sign of a failing blower motor relay. The relay is a unit that supplies power to the heat/AC blower motor. When this relay is faulty, the blower motor may work intermittently or sometimes not at all....

Ceramic brake pads squeaking

Many brake pads will make noise when installed. This is usually material noise that may or may not go away. One thing you could do that may help, is to lubricate the contact points on the brake pads. You'll find...

Car stalls, have to start from neutral. 1997 Jaguar XJ6

This might be the idle air control valve failing. Since this is one of the electronic engine controls which interacts with the engine management system to control idling specifically, it is a prime candidate for this mode of failure. This...

Using E-15 fuel in my car do I need to use regular unleaded fuel maybe once in awhile or is it safe to continue to use the E-15?

E-15 is shorthand for gasoline blended with 15% Ethanol which is a fairly corrosive material which can cause damage to rubber parts and other critical parts over time. Ethanol also attracts and bonds with water from the air, and that...

Ticking and rattling after parts were replaced

It sounds to me like the valve timing is now incorrect. The pin that you are referring to might be an alignment pin of some kind. If the valve timing is not correct, this can cause the valves to tick...

Related articles

Top 10 Ways to Extend the Life of Your Car
Every driver wants a car that lasts a long time. Make your car last longer by checking your motor oil, parking in the shade, and keeping it clean.
How Long Does an Idler Pulley Last?
The The drive belt that is on a car runs nearly all of the major components of the engine. Most of the newer cars on the market have a serpentine belt rather than various V-belts. In order for this belt...
How Does an Engine Idle High and Low?
A common problem that car owners experience is high or low engine idle. A damaged intake gasket, cold air intake, or PCV valve can cause idle issues.