Why does my 1993 geo prizm misfire when engine is warm?
cab lot of answers to that one but first place to check, is to make sure automatic choke is shutting off completely Spark plug gap is pretty important. Pull the plugs and gap to .30 to .35 and that may help the engine to run more smoothly.
Would a defective thermostat on a 1993 GEO Prizm cause low readings on the temperature gauge and little heat in the car?
The LS is prone to coil failure which leads to a misfire in the affected cylinder. A misfire due to a failing coil usually happens when the engine is warm and under load (low RPMs, accelerating or going uphill). The misfire may feel like a transmission problem because it causes the car to buck and stutter as though the gears were skipping or getting stuck briefly. The worse the misfire gets, the harder it will…
Your thermostat may be stuck in the open position. It is a strightforward task to replace it. If you pop the hood and look from the driver side towards the engine you will see a small diameter hose connected to the thermostat housing with 2 bolts. Drain the coolant, remove the bolts, replace the thermostat and refill.
Why would a Nissan altima have a bad vibration from the engine when cold but when warm it is fine This is a 1993 altima and has had a recent tune-up?
I recently serviced a 2010 f350 with 6.4 diesel engine that was overfilled 9 quarts. Yes nine quarts. Truck ran like that for over a month and the symptomps were similar to having a misfire. The idle was rough, truck was shaking a lot,like it had a bad engine mount it was also choking at times especialy when warm.