SOLVED: Car Vibrates When Accelerating – Found the Real Problem
Quote from CheckEngineChamp on June 11, 2025, 8:05 amHey everyone,
Sharing my recent repair story to help anyone facing similar issues.🚩 Symptoms I Noticed:
My car (2013 Honda Accord) vibrated heavily during acceleration, especially between 30-50 mph.
No vibration when idling or at constant highway speed.
No check engine light or error codes via OBD2 scanner.
The problem was getting worse day by day.
🔍 What I Tried (Step-by-Step Troubleshooting):
1️⃣ Wheel Balancing & Alignment Check
✅ No issues found — wheels balanced and alignment perfect.2️⃣ Tire Inspection
✅ No bulges or uneven wear detected.3️⃣ Motor Mounts Check
✅ Slight wear but not enough to explain the severe vibration.4️⃣ Axle Shafts & CV Joints Inspection
🔎 Found that the passenger side CV axle inner joint had excessive play.5️⃣ OBD2 Scan (Autel AL519)
✅ No stored codes or pending misfires.🔧 The Actual Fix:
✅ Ordered a brand new passenger side CV axle (OEM replacement).
✅ Installed it myself in the garage (about 2 hours work).
✅ Test drive: vibration completely gone! Smooth acceleration at all speeds.🔬 What Caused It:
👉 The inner CV joint was slightly binding under load causing vibration during acceleration but not at constant speed.
📌 Lesson Learned:
Even without codes, mechanical parts can fail silently.
Always check axles if you have acceleration vibrations.
OBD2 scanner can help rule out engine misfire or transmission issues early.
🔧 Problem Status: Fully Solved ✅
🗨️ Feel free to add if anyone has more tips or long-term feedback.
Hey everyone,
Sharing my recent repair story to help anyone facing similar issues.
🚩 Symptoms I Noticed:
-
My car (2013 Honda Accord) vibrated heavily during acceleration, especially between 30-50 mph.
-
No vibration when idling or at constant highway speed.
-
No check engine light or error codes via OBD2 scanner.
-
The problem was getting worse day by day.
🔍 What I Tried (Step-by-Step Troubleshooting):
1️⃣ Wheel Balancing & Alignment Check
✅ No issues found — wheels balanced and alignment perfect.
2️⃣ Tire Inspection
✅ No bulges or uneven wear detected.
3️⃣ Motor Mounts Check
✅ Slight wear but not enough to explain the severe vibration.
4️⃣ Axle Shafts & CV Joints Inspection
🔎 Found that the passenger side CV axle inner joint had excessive play.
5️⃣ OBD2 Scan (Autel AL519)
✅ No stored codes or pending misfires.
🔧 The Actual Fix:
✅ Ordered a brand new passenger side CV axle (OEM replacement).
✅ Installed it myself in the garage (about 2 hours work).
✅ Test drive: vibration completely gone! Smooth acceleration at all speeds.
🔬 What Caused It:
👉 The inner CV joint was slightly binding under load causing vibration during acceleration but not at constant speed.
📌 Lesson Learned:
-
Even without codes, mechanical parts can fail silently.
-
Always check axles if you have acceleration vibrations.
-
OBD2 scanner can help rule out engine misfire or transmission issues early.
🔧 Problem Status: Fully Solved ✅
🗨️ Feel free to add if anyone has more tips or long-term feedback.
Quote from ScanToolGuru on June 11, 2025, 10:03 am👍 Great work! Classic CV joint symptom. Glad you shared the full troubleshooting steps — very helpful!
👍 Great work! Classic CV joint symptom. Glad you shared the full troubleshooting steps — very helpful!