Any ideas about engine noise on v8 hemi ? At first I thought it was an air leak somewhere on the intake side but ruled that out with inspection. Best way I can describe it is like radio interfence.

2,405

Asked by canalbreath Oct 13, 2011 at 02:08 PM about the 2004 Dodge RAM 1500 SLT Quad Cab 4WD

Question type: Maintenance & Repair

It seems to adjust it's sound with engine rpm. I happened to notice a late model Neon driving by my that made the same noise. I have 60k miles on it and it is in otherwise great shape. I haven't noticed any performance loss either.

6 Answers

33,345

instead of your typical V8 with 8 sparkplugs, HEMI engines have 16 spark plugs. one set of 8, is what are called coil on plug (no traditional spark plug wires) the other set of 8 is a traditional setup with wires. on my moms 07 durango some of the wires had there coating melted, and what sounded like radio interference was the wires arcing. id check those out first, you wont necessarily notice a loss in power, but you may notice a loss in gas mileage.

it has a coil and plug wire on each cylender,one may be bad,if you can have it at idle pull one plug wire at a time,it will run rough unpluged,plug back do this on each one,if one is bad it will not change the way it idles,problem found.a bad coil will cause radio interference on your truck.if you cant handle the spark from it,get a rubber handel plug wire puller at any parts store.about $12.00.Dont know what the hell the other poster is yacking about????

33,345

you pretty much just restated exactly what i said. but i do agree with you that a bad wire, or coil could cause radio interference for sure. but i think what hes trying to say is, the noise the truck is making sounds like radio interference but isnt. hence why i said he could have a few melted wires like my moms durango did. im not disagreeing with you at all here though. either one of us could be right on his problem

33,345

i think you need to stop attending the westboro baptist church, theyve turned you into a keyboard warrior

2,405

Your right I'm not getting actual radio noise. Just was trying to describe the sound that is occuring as the motor speeds up as similar to that. I've changed the plugs since this started happening and and I did inspect all the wires. Nothing is obvious, let's say that. It sounds like it's more in the front of the engine, AC compressor, tensioner or maybe one of the idler pulleys. I was hoping someone had been through the swap out process so I could start there first. Hmmmm I'll have to see if I can disable the cooling fan and probably could pinpoint it a little closer. Thanks for your thoughts.

Your Answer:

RAM 1500

Looking for a Used RAM 1500 in your area?

CarGurus has 86 nationwide RAM 1500 listings starting at $7,995.

Postal Code:

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    19,820
  • #2
    dandyoun
    Reputation
    15,160
  • #3
    Gene Arnett
    Reputation
    11,710
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
343 Great Deals out of 12,723 listings starting at $599
Used Chevrolet Silverado 1500
213 Great Deals out of 9,034 listings starting at $2,900
Used GMC Sierra 1500
188 Great Deals out of 8,956 listings starting at $1,000
Used Dodge RAM 2500
25 listings starting at $9,900
Used Toyota Tundra
33 Great Deals out of 988 listings starting at $9,240
Used Toyota Tacoma
43 Great Deals out of 682 listings starting at $9,975
Used Dodge Durango
70 Great Deals out of 1,993 listings starting at $7,999
Used Chevrolet Silverado 2500HD
34 Great Deals out of 1,782 listings starting at $1,000
Used Jeep Grand Cherokee
110 Great Deals out of 3,487 listings starting at $4,950
Used Ford F-250 Super Duty
34 Great Deals out of 719 listings starting at $4,290
Used Ford Mustang
54 Great Deals out of 1,606 listings starting at $6,200
Used Jeep Wrangler
136 Great Deals out of 5,920 listings starting at $8,995

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.