1990 Ford Bronco Q&A
1990 Ford Bronco Question: Engine Knock under load
Do not drive the Bronco get it towed. A knocking or engine unevenness could be as simple as a ignition misfire but it may be something a lot more serious like oil starvation to a piston connecting rod or piston. The engine oil level may be OK and you may have good oil pressure and proper engine running temperature but if you drive or run the engine, the lack of oil to where ever the source of the noise is coming from will cause more expensive or even catastrophic damage to the engine. It is safest to get it checked by a mechanic rather than potentially do serious damage. - patrick mannion
Bronco has been parked for 3 years trying to get it running. Fixed brakes, power steering unit, transmission gasket and filter, replaced spark plugs, and finally drove it on the road and there is k...