At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
What gear should I normally drive my car in, because it has two D's, a little one with a box around it, and a big D. My car is a 1991 buick park avenue, automatic
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
D with no circle is just "Drive." this a lower geared drive and best used around time as it provides a better pick up and over all response.
OD is "Over Drive" and used for cruising speeds ove 50+ MPH down the highway. Over Drive allows the vehicle to cruise at a more sustained speed with less engine speed and provides better fuel consumption.
While you are in Drive going down the highway and your speed reaches 50 MPH just switch gears into Over Drive and you will notice your car "relax" a bit. Remember you don't want to switch from Over Drive to Drive until you get down to around 45MPH or it can be a little rough on your engine and transmission.
did u check to see if the coil it is a little box underneath the hood beside the fender on top could be burnt!!!it a liitle box 2x1 inch not very big!!
That sounds similar to a Throttle Position Sensor problem. At certain points within the sensor, it can accumulate corrosion, or the contact points could wear down, causing an implausible reading to the Computer, and the computer tries to adjust fuel supply by how that sensor is reading, so if you have a bad sensor, it will change fuel pressures and possibly try switching gears.
I will need to have a little more information...does it turn over...and if it does...does it seem to be turning over faster than normal since that could indicate a timing chain problem.
If speedometer which is bouncing around, it is likely a bad ground near where the speed sensor wire harness (which connects the speed sensor to the rest of the "network") exits the transmission housing. It's at the very back of the transmission (you have a 4T60E trans) to the left of where the right side half-shaft leaves the trans housing. Just look for damaged wires. If none, replace the speed sensor for $50-60.
If it is the fuel gage, the sensor is probably not "zeroed"--it's reading wrong, too high, and if it were to start at true "empty", it would read right. Thus, the gage is always reading a little high (maybe a 1/8-1/10th of a tank too high?). This isn't a problem until to stop, start, or turn quickly and cause the fule to slosh around in the tank and starve the in-tank pickup which sends fuel to the engine.
If it is the fuel gage, you should simply put as much fuel in as you can and see if the needle goes far above "F". If it does, note how far it went and then practice filling the tank when the needle is that same distance above "E".
×