P0340 on RAM
Camshaft Position Sensor Circuit Malfunction
P0340 on RAM vehicles indicates camshaft position sensor circuit malfunction. Au7o has documented this code across 1 RAM model — most commonly on 1500. This code means the engine computer lost or received an erratic signal from the camshaft position sensor. That sensor tells the computer the exact position and speed of the camshaft, which it uses together with the crankshaft sensor to time fuel injection and spark precisely. When the camshaft signal is missing, intermittent, or out of range, the computer sets P0340. Symptoms often include hard starting, stalling, rough running, or a no-start because the engine can't time itself correctly. Typical repair costs on RAM range from $50 to $250, depending on the specific model and root cause.
Common Causes of P0340
- •Failed camshaft position sensor
- •Corroded or loose sensor connector
- •Damaged or shorted sensor wiring
- •Bad reluctor/tone ring on the camshaft
- •Loose timing chain/belt or jumped timing
- •Metal debris or oil contamination on the sensor tip
- •Poor sensor power or ground supply
- •Faulty PCM/ECM (rare)
P0340 on RAM by Model
RAM 1500(1 issue)
- Magnum Camshaft/Crankshaft Position Sensor Failure — Hot Stall and No-Restart1994-2001
The 3.9/5.2/5.9 Magnum uses a camshaft position sensor inside the distributor plus a crankshaft position sensor on the bell housing. These sensors are heat-sensitive and fail intermittently — the engine stalls or dies when hot and refuses to restart until it cools, or cranks-but-won't-start with no other symptom. Corroded/loose sensor connectors cause the same behavior.
Looking for P0340 on a different make?
View P0340 across all makes →Frequently Asked Questions
What does P0340 mean on RAM?▼
P0340 stands for "Camshaft Position Sensor Circuit Malfunction." This code means the engine computer lost or received an erratic signal from the camshaft position sensor. That sensor tells the computer the exact position and speed of the camshaft, which it uses together with the crankshaft sensor to time fuel injection and spark precisely. When the camshaft signal is missing, intermittent, or out of range, the computer sets P0340. Symptoms often include hard starting, stalling, rough running, or a no-start because the engine can't time itself correctly. On RAM specifically, this code is documented across 1 model.
What causes P0340 on RAM vehicles?▼
Common causes on RAM: Failed camshaft position sensor, Corroded or loose sensor connector, Damaged or shorted sensor wiring, Bad reluctor/tone ring on the camshaft, Loose timing chain/belt or jumped timing. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0340 on a RAM?▼
Repair costs on RAM range from $50 to $250, depending on the specific model and root cause.
Which RAM models have P0340 documented?▼
Au7o has documented P0340 on 1 RAM model: 1500.