• Ford Aerostar
  • Fuel Economy and Mileage
  • The Moon

Why would your MPG be lower after a full tune up?

User Avatar

Wiki User

βˆ™ 2005-09-15 19:19:21

Best Answer

Could be the mechanic set the throttle control too high, so your car idles at a higher RPM than it used to. Timing was set wrong. your car should be better after a tune, perhaps the tuner made a mistake or did not do the tune correctly

2005-09-15 19:19:21
This answer is:
User Avatar

Your Answer


Related Questions

What are the signals for a tune up?

Drop in fuel mpg Drop in performance

Can you change your car's MPG?

Yes, you can increase it with tune-ups and by upgrading the engine.

What is the average MPG of the Impala SS?

EPA estimations are 18 MPG in cities and 28 MPG for highways. However, you can pretty safely expect slightly lower values in reality, around 15 MPG in cities and 23 MPG on highways. The overall MPG is slightly lower than the average compared to other V8 engines.

How do you make your 1998 5.7 easer on fuel?

Tune it up. If its A car you can hope for around 18 MPG If its A truck you can hope for around 14 MPG

What is the mpg for a 1965 mustang?

That depends on the engine, mostly. No matter which option, it wasn't good by today's standards. My 289 2bbl was around 10 mpg before I did a tune up. Now it gets 16 -18 mpg.

Mpg for a 2000 gmc savana?

14-17.5mpg w/90,000 miles on it and a fresh tune up

What lowers mpg in a vehicle?

Accelerating and braking abruptly, an out-of-tune engine, under-inflated tires, to name a few.

Can a system fit in a Geo Metro?

Probably, but I wouldn't try that. It may overload the Metro's tiny electrical system if it is a first generation model 1988-1994. Plus, it would lower your MPG on such a high MPG car.

What is the gas mileage of a Volkswagen thing?

With a DP1600 engine 19-21 mpg on a 009 distributor, with an SVDA distributor 25-27 mpg. Assuming correct carburetor, and good state of tune.

What is the mpg for a 2002 Ford Expedition?

Mine gets terrible mileage. On the freeway I have done as well as 15 mpg. Last tank of gas I averaged 11 mpg. Going in for a tune up to see if it helps get any better miles per gallon.

How much would it cost to drive from New Castle PA to Los Angeles CA?

If your car averages 25 mpg, and the price for a gallon of gas is $2.97, it would cost $288.58 for a one-way trip. The more mpg your car gets, the lower the cost of the trip.

Can a bad camshaft sensor cause lower mpg?

If the camshaft sensor is not operating properly, then the engine could suffer lower mpg. The sensor is what causes the engine to fire at the proper times and this is critical for better economy.

Why does your 97 s10 blazer burn so much gas?

It could be time for a tune up. What kind of MPG are you getting?

What can you do to a 99 S-10 to get better mpg?

Full tune up will certainly improve gas mileage. plugs, wires, cap/rotor(if DIS, then doesn't have), fuel filter, air filter, pcv valve to name a few.

What is the MPG on Chevy Cobalt?

The mpg for the cheby cobalt ranges from 24-26 mpg city and 34-37 mpg highway driving, depending on the transmission. Keep in mind that this is based on ideal car conditions and will be lower it the car is not maintained properly.

How can you improve your mpg on your 93 deville?

Driving conservatively and on the lower end of gears

Why does the smart car get 80 mpg in Europe and 40 mpg in the US?

The smart car gets 80 mpg in Europe because it uses a deisel engine. The US is only getting/selling the gasoline version, which accounts for the different/lower (40 mpg) efficiency.

Why does your 1991 accord get bad mpg?

Have you tried a tune-up, changing air and oil filters in the process? Always a good start.

Would you save more money by increasing the fuel efficiency of your car from 15 mpg to 25 mpg or increasing the fuel efficiency from 25 mpg to 40 mpg?

25 to 40mpg

How do electric cars save money?

They save money because the maintenance on electric vehicles is lower. Also the price of Kwh vs mpg is lower meaning you pay less to drive on electricity then you would to drive on gasoline.

How much mpg does a 1994 cutless cierra Oldsmobile have?

full tamk i get 1200km

What is the average mpg for SUV?

Considering the worst being 13 mpg (at best) and 24 mpg (at least) average would be approximatly 17-20 miles per gallon. If you eliminate hybrid SUV's, average fuel consumption would be about 15 or 16 mpg.

What is the mpg on a 1968 square-back?

I would think that it would be around the same as the Beetle which is around 24-25 mpg on the highway.

What could happen if tire pressure is lower than supposed to be?

You can lose MPG or have a blowout or flat.

How many mpg does a 1986 4X4 ford bronco get?

Expect about 10 mpg. A well tuned rig with a light foot on the highway may approach 15- 16 mpg. Most full size fords fall into this catagory.