1998 Dodge Viper Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 Dodge Viper
Verified by mechanics, reported by drivers like you
1998 Dodge Viper ProblemsLDP failure due to carbon from vapor canister
Leak detection pump failure can be caused by the internal diaphragm switch sticking, or in some cases, contamination from debris or carbon particles from vapor canister. If black carbon particles are present in the LDP, replace vapor canister in addition to LDP. The purge solenoid should also be checked for debris or carbon contamination and replaced as necessary. All evap system hoses are subject to cracking and splitting causing leaks, Inspect hoses carefully. In cases of contamination from carbon particles or debris, all hoses and tubes must be blown out with compressed air to remove contaminates.
The AC/heater (HVAC) system may unexpectedly switch to the defrost mode when accelerating. This system is operated by engine vacuum and should be inspected for any vacuum leaks if this problem develops. There is also a revised vacuum check valve available to address this concern.
Our technicians tell us that there is a Powertrain Control Module software update to correct an intermittent hesitation between 4,000 & 5,000 RPM, or engine spark knock when using 91 octane gasoline.
1998 Dodge Viper Questionslow idle / exhaust leak (2 answers)
low idle maybe 500 rpm not sure why? car has only 6300 miles. I do notice an exhaust leak from the drivers side front tire area. maybe this would cause a low idle? also, where can I go to fix my exhaust leak? I live in Chicago