Knocking on high rpm

Asked by Mar 13, 2017 at 12:25 AM about the 2003 Dodge Ram 1500 Laramie SB

Question type: Maintenance & Repair

My 03 dodge ram 4.7 knock's if I
accelerate hard and when shifting
gears . But only when it gets to like 3
or 4 thousand rpm other then that
runs perfect ?? Please help

3 Answers

121,035

Sounds early stage rod failure, it will only get louder and sooner, that engine is not the best for longevity. My Jeep had the same engine and it started having problems just over 110K. So keep the RPM's down and add some slick50 to the engine oil on the next oil change and see just how long it will last.

1 people found this helpful.

How hard would it b to just do the bearings n do u think that would fix it

121,035

No cause the crankshaft has already been damaged, one or more of the journals is egg shaped, so the engine will have to come out and either the crankshaft turned or replaced with a crank kit. You could just replace the bearings but you would br right back in there in few miles with it doing the same thing.

1 people found this helpful.

Your Answer:

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 520 nationwide Ram 1500 listings starting at $4,300.

Postal Code:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    7,180
  • #2
    pudgybear
    Reputation
    6,940
  • #3
    dandyoun
    Reputation
    6,510
View All

Related Models For Sale

Used Ford F-150
134 Great Deals out of 11,446 listings starting at $1,995
Used Chevrolet Silverado 1500
102 Great Deals out of 11,132 listings starting at $4,950
Used Dodge Ram 2500
77 listings starting at $2,975
Used GMC Sierra 1500
81 Great Deals out of 10,291 listings starting at $4,995
Used Toyota Tundra
27 Great Deals out of 1,510 listings starting at $4,500
Used Toyota Tacoma
14 Great Deals out of 1,735 listings starting at $6,413
Used Ford F-250 Super Duty
20 Great Deals out of 799 listings starting at $1,500
Used Chevrolet Colorado
12 Great Deals out of 2,320 listings starting at $3,995
Used Ford Mustang
45 Great Deals out of 1,253 listings starting at $4,685
Used Dodge Dakota
5 Great Deals out of 136 listings starting at $4,795
Used Nissan Titan
29 Great Deals out of 881 listings starting at $4,960

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
11 Great Deals out of 179 listings starting at $8,995
2009 Dodge Ram 1500 For Sale
3 Great Deals out of 73 listings starting at $10,488
2008 Dodge Ram 1500 For Sale
9 Great Deals out of 80 listings starting at $4,300
2007 Dodge Ram 1500 For Sale
3 Great Deals out of 59 listings starting at $4,995
2006 Dodge Ram 1500 For Sale
35 listings starting at $7,999

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.