1995 Volkswagen Jetta Q&A
1995 Volkswagen Jetta Question: my 95 jetta keeps stalling.
I bought the car from a friend in Salt Lake City. I live in southern Utah 110 miles from Las Vegas. At first the car ran fine, then it started chugging during acceleration but once I got it tacked up to 3000 rpm it would run okay. It then developed a weird problem where it would be running fine 2500 - 3500 rpm start to get a load on the engine and then it would cut out. It acted like it wasn't getting any fuel. Crazy thing was, is that when the rpms it 1000 it would kick back in and accelerate fine. It then on occasion wouldn't start. It smelt like it may have been flooded. At first I thought it might have vapor locked. It took about 40 minutes then the car finally started. It then progressed to where if I drove the car for 15 - 20 minutes I'd have to let the car sit for a couple of hours before it would start. This happened a couple of times on the way home from town. I noticed on one trip to town (I live 12 miles outside of town and a climb in elevation of about 1000 ft) that the temperature stayed right around 125. When I pulled into Home Depot the temperature shot up over 200 and the car chugged stalled and then quit running. At the time the outside temp was 112. The car wouldn't start, I pulled the gas filter and when I cranked the engine no gas pumped out of the tank. At first I thought I wondered if Volkswagen had some type of cut off switch so you couldn't over heat the car, with it not pumping gas I thought it might be the fuel pump. I left the car overnight at Home Depot came back the next morning started it right up drove for 15 minutes then it died again. I read on a bog that the coolant temp sensor tells the fuel management system how much fuel to inject when the motor is cold verses when the motor is hot. The fuel filter is new and I replaced the coolant temp sensor. The car still stalls, but now it will start back up instead on having to wait a couple of hours or overnight. I noticed that now when it starts to stall that the check engine light will come on and then go back off. There's no Volkswagen dealer in town and no one can run a check engine light for me so I can get a code to find out what's happening. - tc1960
Best to find a way to get that code ASAP, otherwise your are guessing. There are plenty of shops with scanners that can read that code, it does not have to be a dealership. How does your air cleaner look? Is it clean or oily, I have seen lots of these era Jetta motors have issues with their PCV systems and then the oil backs up and wipes out the Mass Air Flow Sensor, which will cause very erratic running. - dandd
Please check the crankshaft sensor located behind the oil filter. - Visitor