Tag Archives: SL2

Replacing engine thermostat: 1998 Saturn SL2

Thermostat and gaugeAfter purchasing a used 1998 Saturn SL2, one of the first things I noticed was that once the car had warmed up the dashboard temperature gauge was always pointing slightly less than the 1/4 mark and never went any higher. The coolant temperature sensor was malfunctioning, so I replaced it. However, whenever replacing the temperature sensor it is also a good idea to replace the engine thermostat. It is a cheap part and is very easy to replace. Since you have to drain the coolant for both repairs, you may as well get both parts replaced at the same time to save some time and money. Continue reading Replacing engine thermostat: 1998 Saturn SL2

Replacing engine coolant temperature sensor (ECTS) – 1998 Saturn SL2

ECTS and gaugeI recently purchased a used 1998 Saturn SL2, and one of the first things I noticed was that once the car had warmed up, the dashboard temperature gauge was always pointing slightly less than the 1/4 mark and never went any higher. I thought this was a bit odd, since all my previous vehicles would usually stay just below the 1/2 mark, but then I figured that maybe the SL2 engine just stays cooler. Not so. Doing a quick search online uncovers the fact that one of the most common problems with the SL2 is a cracked coolant temperature sensor and/or a stuck-open engine thermostat. Continue reading Replacing engine coolant temperature sensor (ECTS) – 1998 Saturn SL2

How to change car air conditioning valve core (Schrader valve)

Valve core replacement toolI recently purchased a used car. The only problem it had was that the air conditioning did not work – it would only blow warm air. After recharging the A/C system (see that blog post here: mike-thomson.com/blog/?p=1240), I could see that the Schrader valve core on the air conditioning low side port was leaking very badly. This blog post describes how to replace the Schrader valve core without losing your A/C system charge in the process. My car is a 1998 Saturn SL2, but this repair can be used as a reference for most vehicles. Continue reading How to change car air conditioning valve core (Schrader valve)

How to recharge car air conditioning and find leaks

R-134a rechargeAfter purchasing a used 1998 Saturn SL2, I needed to recharge the air conditioning system with R134a refrigerant because the A/C would only blow warm air. This blog post describes how to recharge your vehicle’s air conditioner, and the instructions here are general enough that they will apply to practically all vehicle makes and models. If you find yourself needing to replace your A/C system’s valve core (Schrader valve), then see my other blog post describing how to do that: mike-thomson.com/blog/?p=1234. Continue reading How to recharge car air conditioning and find leaks