WebJan 11, 2024 · 1. 4.3L Vortec ICV and TPS Failure. The idle control valve (“ICV”) and throttle position sensors (“TPS”) are prone to failure on all 4.3 engines, which can result in poor idling, engine stalling, bad acceleration, and other low-rpm running problems. The idle control valve sits on the throttle body and is responsible for adjusting the ... WebMEMBER. 1996 CHEVROLET BLAZER. 120,000 MILES. Hello. I have a 1996 Blazer with 4.3L engine that hesitates on acceleration. Sitting at idle and punch the accelerator, engine bogs down and then accelerates. No check engine light comes on. Also, PCV valve vibrates like crazy even after I replaced it. If I pull the PCV valve off, there is lots of ...
My 2002 Blazer just started making a loud whining noise
WebMar 30, 2016 · While SUV owners complain of buffeting causing headaches and dizziness, GM half-ton owners claim there is an insistent vibration in their trucks. “While driving at speeds above 45 mph, there is a... WebJul 25, 2012 · Why is it when driving the RPM gauge drops or jumps up? When I'm accelerating and get to required speed my RPM gauge either drops and steadies or jumps up then steadies back. Also if i push her too much to go faster too quickly it starts acting like the transmission is slipping. the hen and chicken
93 S-10 Blazer 4x4 has started making a growling or howling noise …
WebMar 30, 2012 · Noise: Clicking while decelerating from 20 miles per hour to a complete stop Cause: Worn carrier case-side gear bores Noise: Rumble or clicking that gets worse during … WebWhen your TPS is broken, it can cause your automobile to accelerate on its own regardless if you’re pressing down on the gas pedal. This can result in a fluctuation of your engine’s RPM. So if you notice your RPM fluctuating while accelerating, it might be due to a faulty throttle pedal position sensor. WebVehicle: 2000 Blazer 4WD Automatic 260,000+ miles (Runs perfectly if not for something going wrong every two weeks) Symptoms: Engine sounds rough when accelerating; When accelerating there's a ticking/clicking noise (similar to a card on the spokes of a bike; like what children do) Check Engine light: 'Bank 2 system too lean' the hen and chicken alton