What causes rough idle hesitation?
Causes of a rough idle. Many different problems could result in a rough idle for your car or truck, including: dirty fuel injectors, clogged air filters, bad spark plugs, and a variety of exhaust system issues.
What problems can a bad air filter cause?
A contaminated air filter can restrict engine airflow, resulting in a rich air/fuel mixture. This results in incomplete combustion and an engine misfire. A rich fuel mixture can also foul the spark plugs, causing a misfire. An engine misfire can greatly increase vehicle emissions.
What are the signs of a bad air filter?
Here are seven common problems that could be solved by replacing your air filter:
- Strange engine noises.
- Decreased performance.
- Decreased fuel economy.
- Black smoke or flames in the exhaust.
- Smell of petrol in the exhaust.
- Air filter looks dirty.
- Check engine light comes on.
What was the hesitation problem on my Subaru Outback?
My hesitation was due to my plug wire on #3 breaking apart after the last spark plug change (I pulled on the proper location of the wires to take the wires off). I changed them in the parking lot of the local Subaru dealership (when I was out of town!). Fixed.
How do you ground a Subaru Legacy International?
Here is a link to someone elses Subaru Legacy International • View topic – Grounding mod question .There are pics further down on the page. It is not quite how I did it but it gives you a pretty good idea. I just went to either side of the intake manifold, and to the two strut towers.
What kind of car is 1998 Legacy Outback?
Hey everyone! Enter your ride HERE to be a part of this month’s Outback of the Month Challenge! I have a 1998 legacy outback which I bought around 4 months ago.
Is there a hesitation problem in a 1999 Legacy wagon?
1999 legacy wagon 2.5-same exact problem everyone else is having, saw this thread and thought yes! Work in an all make shop and have seen tons of weird problems caused by bad grounds. Gotta start with the basics, which we often forget!