1998 Pontiac Bonneville engine problems
The 1998 Pontiac Bonneville has 217 engine complaints filed with NHTSA — 60% of the year's total, and up sharply from the prior model year.
217
Engine complaints
60%
Share of year
1
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“CONSUMER CALLED COMPLAINING ABOUT HAVING PROBLEMS WITH THE INTAKE MANIFOLD. ALSO STATED THAT WHILE DRIVING THE VEHICLE THE ENGINE WILL OVERHEAT. DEALER WAS CONTACTED AND STATED THAT HE HAD A DIFFERENT INTAKE MANIFOLD AND IT WAS REPLACED BUT CONSUMER HAS THE SAME PROBLEM AGAIN. THE SECOND TIME THE…”
Common questions
How many engine complaints does the 1998 Pontiac Bonneville have?
NHTSA has 217 complaints about the 1998 Pontiac Bonneville engine — 60% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.