Low MPG after engine replacement

Asked by Zephyr_3254 Nov 21, 2019 at 08:06 AM about the 2009 Dodge RAM 1500 Laramie Crew Cab 4WD

Question type: Maintenance & Repair

After engine replacement my mpg dropped steadily.  At one point it was
down to 2.3 mpg.  Prior to engine replacement, mpg was 11.1.  I have put
less than 5000 miles on the new engine.  These things have been replaced
over the last 8 months; water pump, radiator, thermostat, plugs, coils, fuel
injectors, intake manifold, heater core, evaporator, a/c compressor.  Have
had 4 software updates.  So far nothing has corrected the mpg issue.  What
am I missing?

1 Answer

Zephyr_3254 answered 5 years ago

Last repair, November 15th, replaced intake manifold. MPG increased to 16.4 for about 75 miles. MPG is down to 9.4 in town, 12.3 on highway. I'm not sure what to do now. There are no codes displaying at this time. Any ideas are welcome.

Mark helpful

Your Answer:

Related Questions

  • Low MPG after engine replacement 1 Answer

    After engine replacement my mpg dropped steadily. At one point it was down to 2.3 mpg. Prior to engine replacement, mpg was 11.1. I have put less than 5000 miles on the new engine. These things ...

    2009 Dodge RAM 1500 Laramie Crew Cab 4WD

    -

    Maintenance & Repair

  • 2000 ram burns to ground after crank replacement......... 1 Answer

    2000 dodge ram 1500 quod cab sport . I bout this truck at us auto sails in gainsville ga... I drove it for 3 months and the engine started knocking really loud. thay refused to even talk about it. so ...

    2000 Dodge RAM 1500

    -

    Maintenance & Repair

  • tapping in engine after changing my alternator 1 Answer

    my dodge ram has 56,000 miles on it. it was running fine and one day the alternator just went so i changed it, well that one was bad too only lasted 3 weeks and the truck just shut down getting off a ...

    2007 Dodge RAM 1500 SLT Quad Cab 4WD

    -

    Maintenance & Repair

  • Truck shuts off after engine is warm! 4 Answers

    I put a 2000 jeep Grand Cherokee 4.7 engine on my 02 dodge ram 1500 ... " Used a 02 Durango intake Manifold because It was new off my old Engine " Now after installing engine, my truck will start u...

    2002 Dodge RAM 1500 SLT Plus Quad Cab 4WD

    -

    Maintenance & Repair

  • why do i have oil shooting out between oil filter and engine after putting in a new engine 3 Answers

    I just put in a new engine in my 01 dodge ram 1500 5.9, now when it is running I have oil coming out between the oil filter and the engine and hard to start engine

    2001 Dodge RAM 1500 SLT Quad Cab LB 4WD

    -

    Maintenance & Repair

Shortcuts

Search Dodge RAM 1500 Questions

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    20,300
  • #2
    dandyoun
    Reputation
    15,300
  • #3
    Gene Arnett
    Reputation
    11,760
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
320 Great Deals out of 13,991 listings starting at $1,712
Used Chevrolet Silverado 1500
222 Great Deals out of 5,872 listings starting at $2,975
Used GMC Sierra 1500
132 Great Deals out of 6,515 listings starting at $3,975
Used Dodge RAM 2500
17 listings starting at $7,900
Used Toyota Tundra
30 Great Deals out of 1,367 listings starting at $6,255
Used Dodge Charger
39 Great Deals out of 727 listings starting at $5,995
Used Dodge Challenger
22 Great Deals out of 455 listings starting at $7,999
Used Dodge Durango
52 Great Deals out of 2,236 listings starting at $5,500
Used Toyota Tacoma
45 Great Deals out of 1,079 listings starting at $9,399
Used Jeep Grand Cherokee
113 Great Deals out of 3,142 listings starting at $3,995
Used Chevrolet Silverado 2500HD
28 Great Deals out of 1,243 listings starting at $9,500
Used Chevrolet Tahoe
11 Great Deals out of 891 listings starting at $12,900
Used Chevrolet Colorado
32 Great Deals out of 1,585 listings starting at $5,800
Used Dodge RAM 3500
28 listings starting at $13,888

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.