Close
No Warning Lights
1999 Lincoln Navigator

No Warning Lights

(1999 Lincoln Navigator)
The check engine light isn't on regarding the hesitant start/ rough idle. My brother in law doesn't burn premium gas and I know this vehicle requires it. Could this cause an injector or feul system problem ?
in Wilmington, DE on January 04, 2010
Ask a Question
1 answer & 0 comments
Popular Answer
on January 04, 2010
It's probably not the lack of premium gas, but rather that use of a lower-grade gas that doesn't have detergents in it. Over time, this can cause carbon build-up and fuel-system problems. It's not for sure, however. This kind of symptom can have many causes, but a good and cheap first place to start is to run a bottle of Chevron Techron Concentrate Plus with the next tank of Brand Name, high-quality gas. See if it makes a difference over the course of a tank or two.
Sign in to reply
Check Engine Light Diagnosis
$88 - $111 Learn More
on January 04, 2010
It's probably not the lack of premium gas, but rather that use of a lower-grade gas that doesn't have detergents in it. Over time, this can cause carbon build-up and fuel-system problems. It's not for sure, however. This kind of symptom can have many causes, but a good and cheap first place to start is to run a bottle of Chevron Techron Concentrate Plus with the next tank of Brand Name, high-quality gas. See if it makes a difference over the course of a tank or two.
Sign in to reply

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Malfunction indicator light, service indicator, and hybrid system warning! safely stop and do not drive up features a...
When driving in heavy traffic having to stop, start generally at lower speeds 10- 55 mph car stutters, jerks like br...