Truck wants to die at stops and when shifting from reverse to drive?

5

Asked by Cody Aug 18, 2016 at 01:26 PM about the 2003 Dodge RAM 1500 SLT Quad Cab 4WD

Question type: Maintenance & Repair

I have a 2003 dodge ram 1500 slt 4*4 off-road 5.7 165k Hemi and it wants to die at stops. I can be driving at low speed and press on the gas and it will surge the rpm when barely pressed speed around 30 mph or so. It will lop its idle sometimes when first started like its starving for fuel then it will mellow out again. When I put it in reverse the rpm drops to 400 or less and back to drive usually while turning the wheel it will almost die then surge and run fine. It's worse when reversing up a incline. No codes present once had a o2 come up and went away which prompted the purchase of 2 new ones.
New throttle body, IAT, Spark plugs, clean and free PCV valve, K/N air filter , new downstream 02 up stream is stuck going to weld in another soon,.
Coils? Transmission sensor? Fuel pump? Fuel filter ? Gas cap ? Reprogram ECU or transmission ? TSB covering this ? It's got to be something easy . HELP

5 Answers

20

Make sure you don't have any cylinder misfire. start by either disconnecting the coil plugs one at a time and watch or hear for engine rpm change or disconnecting the injectors one at a time and listen for the same thing. If all checks out, Check compression on the cylinders one at a time as well make sure they all have good compression. If one or more cylinders read low. Take valve cover off and check if any of the valve rockers are off. If it was you could pop them back by aligning rocker on the valve stem end tip and lifter sliding in forward direction from lifter to valve and make sure you don't scratch any delicate surfaces that's if you don't have the special tool. Make sure your cam lobe is turned away from the rocker.

1 people found this helpful.
5

Thank you I will try that this weekend what tools will I need? I will go buy them

20

Please remember that if any of the rocker are off then use this tool but you can use a flt head instead and being carful. Miller / Mopar Tools 8516A Valve Spring Compressor

20

Just to add. on my 4.7 check engine didn't turn on until i floored it. If it is misfiring a lot of time check engine light doesn't turn on. Good luck.

Your Answer:

RAM 1500

Looking for a Used RAM 1500 in your area?

CarGurus has 73 nationwide RAM 1500 listings starting at $4,000.

Postal Code:

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    20,270
  • #2
    dandyoun
    Reputation
    15,290
  • #3
    Gene Arnett
    Reputation
    11,760
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Chevrolet Silverado 1500
195 Great Deals out of 5,967 listings starting at $2,975
Used GMC Sierra 1500
143 Great Deals out of 7,206 listings starting at $3,950
Used Dodge RAM 2500
24 listings starting at $9,975
Used Toyota Tundra
34 Great Deals out of 1,190 listings starting at $8,500
Used Toyota Tacoma
57 Great Deals out of 1,080 listings starting at $8,708
Used Dodge Durango
41 Great Deals out of 2,265 listings starting at $5,500
Used Chevrolet Silverado 2500HD
18 Great Deals out of 1,279 listings starting at $9,990
Used Ford F-250 Super Duty
24 Great Deals out of 1,201 listings starting at $8,995
Used Jeep Grand Cherokee
122 Great Deals out of 3,221 listings starting at $4,995
Used Chevrolet Tahoe
20 Great Deals out of 904 listings starting at $11,900

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.