8.0

pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
5,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2018 Ram 3500 fuel system problems

fuel system problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2018 Ram 3500:

Unsubscribe any time. We don't sell/share your email.

2018 Ram 3500 Owner Comments

problem #4

Nov 212021

3500

  • miles

A D V E R T I S E M E N T S

The Bosch CP4 fuel pump internally disintegrated sending metal shavings throughout the fuel system. On the highway accelerating out of a toll both without warning, the truck lost almost all acceleration power and began to shudder. There weren't any preexisting warning lamps or messages. Any time after that when accelerating up to highway speeds quickly or attempting to maintain highway speeds the truck would lose acceleration and begin to shudder. When I took it to a mechanic, they informed me the CP4 fuel pump had "grenaded" and the whole fuel system needed to be replaced. If this had happened when merging into traffic or crossing at an intersection, I could have been hit because I couldn't accelerate as needed. The manufacturer (Ram) is aware of the malfunction and has issued recalls for the 2019 and 2020 years, but not 2018s which have the same exact part. The repairs have been completed on the truck and I have copies of the invoice.

- Whiteman Afb, MO, USA

problem #3

Oct 222022

3500

  • miles
I had a warning message to service my DEF system. I had the truck checked at a RAM dealer who reported i need a new exhaust system. They had me wait a few days while they ordered parts. The message never reappeared and the truck is running fine. I dont understand why the dealer wanted me to replace my exhaust system when it apparently doesn't need one. The 2018 truck has only 18K miles on it.

- Bushnell, FL, USA

problem #2

Jun 012022

3500

  • miles
Unsafe and very hesitant acceleration nearly causing accidents. Long lag time between pressing the accelerator and engine responding to throttle input.

- Buchanan Dam, TX, USA

problem #1

Feb 012019

3500

  • 20,000 miles
The fuel gauge does not read the correct amount, this is all the time. This happen so far to two new 2018 vans in our fleet.

- Bensalem, PA, USA

Search CarComplaints.com for these popular complaint phrases...

Not what you are looking for?