1999 Chevrolet S/T Pickup 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 1999 Chevrolet S/T Pickup, 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
- Engine150.0%
- Fuel system150.0%
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
RATTLE / BUZZING FROM CSFI FUEL INJECTION SYSTEM, 4.3L V6, ENGINE CODE X. THE INLET AND RETURN LINES BUZZ WHILE ENGINE IS RUNNING, REGARDLESS OF RPM. SOUNDS LIKE THERE IS SOMETHING LOOSE UNDER THE IP / DASH IN THE INTERIOR COMPARTMENT. I TRACED THE SOUND TO THE FUEL LINES, WHERE THEY ARE MOUNTED TO THE INTAKE MANIFOLD. THE HARD LINES ENTER THE REAR OF THE CSFI UNIT AND THE BUZZING EMANATES FROM THIS POINT. THE VIBRATION CAN BE FELT IN THE ACCELERATOR PEDAL AS WELL. THE NOISE IS WORST ON A COLD ENGINE AND / OR WHEN THE OUTSIDE TEMPERATURE IS BELOW 80-DEGREES OR SO. THE NOISE IS ALWAYS THERE ON START-UP AND ON NON-HOT DAYS, IS CONSTANT. A FEW TIMES THE NOISE IS NOT HEARD AT FIRST, BUT AFTER 30 SECONDS OR SO OF OPERATION THE NOISE RETURNS. AGAIN, THE NOISE IS PRESENT AT ALL RPM, ALL DRIVING / RUNNING CONDITIONS. IT'S ALMOST LIKE A GURGLING SOUND IN THE INTERIOR COMPARTMENT, MAKES ONE BELIEVE THERE IS SOMETHING DANGLING UNDER THE DASH BOARD OR THERE IS AIR IN THE COOLING SYSTEM / HEATER CORE. THE VIBRATION / BUZZ CAN BE FELT THROUGH THE HARDLINES AND THE FLEX LINES. THE FUEL PUMP CAN BE HEARD BUT IT DOES NOT SOUND OUT OF THE ORDINARY. THE NOISE OCCURS NO MATTER WHAT LEVEL OF FUEL IS IN THE TANK, GRADE OR BRAND. I ALSO DETERMINED IT IS NOT A VACUUM LEAK, NO HOSES ARE TORN, ALL EMISSION EQUIPMENT IS CONNECTED CORRECTLY - THIS IS THE FUEL LINE / SYSTEM. THIS HAS BEEN GOING ON / OFF FOR THE PAST YEAR, ONLY NOW IT IS GETTING WORSE. I TOOK VEHICLE TO THREE REPAIR PLACES, EACH TIME BEING TOLD NOTHING WRONG COULD BE FOUND, EVERY THING WAS FINE. THIS IS RIDICULOUS GM AND CHEVROLET DO NOT STAND BEHIND THEIR PRODUCTS. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
RATTLE / BUZZING FROM CSFI FUEL INJECTION SYSTEM, 4.3L V6, ENGINE CODE X. THE INLET AND RETURN LINES BUZZ WHILE ENGINE IS RUNNING, REGARDLESS OF RPM. SOUNDS LIKE THERE IS SOMETHING LOOSE UNDER THE IP / DASH IN THE INTERIOR COMPARTMENT. I TRACED THE SOUND TO THE FUEL LINES, WHERE THEY ARE MOUNTED TO THE INTAKE MANIFOLD. THE HARD LINES ENTER THE REAR OF THE CSFI UNIT AND THE BUZZING EMANATES FROM THIS POINT. THE VIBRATION CAN BE FELT IN THE ACCELERATOR PEDAL AS WELL. THE NOISE IS WORST ON A COLD ENGINE AND / OR WHEN THE OUTSIDE TEMPERATURE IS BELOW 80-DEGREES OR SO. THE NOISE IS ALWAYS THERE ON START-UP AND ON NON-HOT DAYS, IS CONSTANT. A FEW TIMES THE NOISE IS NOT HEARD AT FIRST, BUT AFTER 30 SECONDS OR SO OF OPERATION THE NOISE RETURNS. AGAIN, THE NOISE IS PRESENT AT ALL RPM, ALL DRIVING / RUNNING CONDITIONS. IT'S ALMOST LIKE A GURGLING SOUND IN THE INTERIOR COMPARTMENT, MAKES ONE BELIEVE THERE IS SOMETHING DANGLING UNDER THE DASH BOARD OR THERE IS AIR IN THE COOLING SYSTEM / HEATER CORE. THE VIBRATION / BUZZ CAN BE FELT THROUGH THE HARDLINES AND THE FLEX LINES. THE FUEL PUMP CAN BE HEARD BUT IT DOES NOT SOUND OUT OF THE ORDINARY. THE NOISE OCCURS NO MATTER WHAT LEVEL OF FUEL IS IN THE TANK, GRADE OR BRAND. I ALSO DETERMINED IT IS NOT A VACUUM LEAK, NO HOSES ARE TORN, ALL EMISSION EQUIPMENT IS CONNECTED CORRECTLY - THIS IS THE FUEL LINE / SYSTEM. THIS HAS BEEN GOING ON / OFF FOR THE PAST YEAR, ONLY NOW IT IS GETTING WORSE. I TOOK VEHICLE TO THREE REPAIR PLACES, EACH TIME BEING TOLD NOTHING WRONG COULD BE FOUND, EVERY THING WAS FINE. THIS IS RIDICULOUS GM AND CHEVROLET DO NOT STAND BEHIND THEIR PRODUCTS. *TR
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 .