What are the most common Kia Forte problems?

According to Au7o's analysis of 445+ owner reports, the 2014-2014 Kia Forte has 1 documented issues. The most frequently reported are: Nu 2.0L GDI Engine Knocking and Oil Consumption. Of these, 1 is rated critical and should be addressed promptly.

Is the Kia Forte reliable?

The 2014-2014 Kia Forte has 1 known issues documented across 445+ owner reports. 1 issue is rated critical: Nu 2.0L GDI Engine Knocking and Oil Consumption. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Kia Forte problems?

Repair costs for known Kia Forte issues range from $0 to $5,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Nu 2.0L GDI Engine Knocking and Oil Consumption, typically costs $0-$5,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

Kia · Known Issues

2014 Kia Forte Problems: 1 Issues Every Owner Should Know

2014 model year · 445+ owner reports · Updated June 2026

Share:@au7o.io

According to Au7o's analysis of 445+ owner reports, the 2014 Kia Forte has 1 documented known issues, with 1 rated critical. The most serious is Nu 2.0L GDI Engine Knocking and Oil Consumption ($0-$5,500 repair). The most commonly reported issue is Nu 2.0L GDI Engine Knocking and Oil Consumption with 445 owner reports. Across all issues, repair costs range from $ to $5,500. DIY maintenance guides at au7o.io.

All 1 Known Issues

NewAI Photo & Video Diagnosis

Not sure this is what you've got?

Upload a photo or video — Au7o will confirm the match and check for other common failures at the same time.

Upload & confirm

Community Reported

445 owners

On the 2014-2018 Kia Forte 2.0L Nu GDI, the 2nd generation Forte with the Nu 2.0L GDI engine (2014-2018) can develop engine knocking and excessive oil consumption. Similar to the Theta II issues but in the Nu engine family, piston ring wear leads to oil blow-by and cylinder scoring. Kia extended warranty coverage under the engine campaign. Affected engines may consume 1+ quart of oil per 1,000 miles.

This issue also affects: Audi Q7, BMW 1 Series, BMW X6

Common Symptoms

Engine knocking at idle and under load
Excessive oil consumption (1+ qt per 1,000 miles)
Blue or white smoke from exhaust
Check engine light with misfire codes
Rough idle

How to Fix

Contact dealer for engine campaign eligibility check. Dealer will perform oil consumption test (requires multiple visits over 1,000 miles). If consumption exceeds Kia threshold (1 qt per 1,000 miles), engine replacement or piston ring replacement is performed under warranty extension. Keep all oil purchase and change receipts.

What Owners Are Using

Parts and tips from 445+ owners who fixed this issue

TipCheck oil level every 500 miles and document with photos. The oil consumption test at the dealer requires proof of consistent monitoring
UpgradeHigh-quality synthetic oil helps reduce consumption and protect worn engines (Mobil 1 Extended Performance Full Synthetic Motor Oil)
View on Amazon
UpgradePremium oil filter ensures proper filtration with high-mileage engines (Wix Oil Filter)
View on Amazon

Typical repair cost:$0 - $5,500

Research This Issue

445+ owners have reported this issue

Google Reddit YouTube NHTSA

Community Reported

High ConfidenceVerified445 reportsLast reported by owners Sep 2024Reviewed Feb 2026

2014 Kia Forte Problems: 1 Issues Every Owner Should Know

All 1 Known Issues

2014-2018 Kia Forte: Nu 2.0L GDI Engine Knocking and Oil Consumption#