1989 Porsche 944 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 1989 Porsche 944, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Engine1100.0%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
I CONTACTED THE LOCAL DEALER AS WELL AS PORSCHE(ATLANTA OFFICE). ALMOST EVERYONE WITH A 944S OR 1989-91 944S2 HAS REPORTED THIS FAILURE OR DEFECT. THE CAM CHAIN TENSIONER HAS A PLASTIC RAMP WHICH CRACKS AND FAILS CAUSING CATASTROPHIC ENGINE FAILURE. PLEASE LOOK ON WWW.RENNLIST.COM UNDER 944 SITE. DO A SEARCH ON CAM TENSIONER AND YOU WILL SEE HOW MANY PEOPLE ARE HAVING THIS PROBLEM. PORSCHE SAYS THERE IS NO PROBLEM AND WILL NOT ISSUE A SERVICE BULLETIN FOR AN INSPECTION INTERVAL. THE PLASTIC RUNNER BEGINS TO CRACK AND THEN FAILS CAUSING THE CHAIN TO CATCH AND COME APART. VALVES/PISTONS COLLIDE CAUSING CATASTOPHIC FAILURE. PART REPLACEMENT COST $300. PLASTIC GUIDE IS NOT AVAILABLE SEPARATELY SO YOU MUST BUY THE ENTIRE HYDROLIC TENSIONER. ANOTHER MODEL, PORSCHE 928S AND 928 S4 USE THE SAME TENSIONER SO THEY ARE AFFECTED AS WELL. THE PROBLEM SEEMS TO BE ARISING AT ABOUT 60-100,000 MILES. THIS MAKES MOST OF THE CARS ABOUT 8-11 YRS OLD SO THE PROBLEM IS BASED ON TIME/USE ISSUE. I CANNOT UNDERSTAND WHY PORSCHE WILL NOT ADDRESS THE PROBLEM. I HAVE THE TENSIONER AVAILABLE FOR REVIEW AND CAN PROBABLY GET MORE FROM OTHER OWNERS AS WE ALL COMMUNICATE REGULARLY ON WWW.RENNLIST.COM. *AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .