My 1998 900s has been acting up latly, and the problem is only getting worse.
Rewind to 2 years ago, I noticed that after an automatic carwash the engine would misfire (once every 3-6 seconds) while idling for a few mins until it all dries up. It was obvious that I had a ground somewhere, be it ignition coil, distributor, plug wires etc..
Anywhoo the problem got rectified by not going to automatic carwashes
:lol:
At about 3 months ago, randomly while accelerating I started expiriencing complete power loss for 4-6 seconds. It would be as if I had drive by wire system, and the computer throttle position sensor was way off. For example I would slowly start accelerating from a stoplight, and about 40kph all of a sudden complete power loss and engine just normalling idling. I'd press the gas pedal to the metal. Nothing for a few more seconds, engine still idling. Then BAM wheel spin.
I did not sense any misfires at all during these episodes, the engine was perfectly idling.
Then it hapenned during uniform highway coasting. I would be going at 120kph when I would loose power for 4-6 seconds. No wierd stutering or misfires. As if the fuel pump only gave enough gas to idle.
Then as of last week sometimes I would come to a stop at a stopsign press gas, and the engine would start to stutter real bad (I usually idle at 900-1000rpms), but the rpms would dropp to 500-600 range. Hard to say if it was misfiring or if fuel pump was having issues. I'd kick it in neutral, it would still misfire for a few seconds, then return to normal ~5 seconds later.
Then today during haighway speeds a really wierd thing hapenned. While accelerating at about 100kph the engine started to completely loose power, return to full power ultra quikly, like twice every second. Basically it would be jerking the car fairly hard twice a second.
I know from the write up it feels like I am loosing spark somewhere along the line, but could it be the fuel pump? It would explain the lag in acceleration after initial start-up.
LOL, knowing my luck it's prolly both ;p
Anyhoo, am just at work killing time, any suggestions are welcome though.
Will initially change rotor cap, plug wires, coil.
Rewind to 2 years ago, I noticed that after an automatic carwash the engine would misfire (once every 3-6 seconds) while idling for a few mins until it all dries up. It was obvious that I had a ground somewhere, be it ignition coil, distributor, plug wires etc..
Anywhoo the problem got rectified by not going to automatic carwashes
:lol: At about 3 months ago, randomly while accelerating I started expiriencing complete power loss for 4-6 seconds. It would be as if I had drive by wire system, and the computer throttle position sensor was way off. For example I would slowly start accelerating from a stoplight, and about 40kph all of a sudden complete power loss and engine just normalling idling. I'd press the gas pedal to the metal. Nothing for a few more seconds, engine still idling. Then BAM wheel spin.
I did not sense any misfires at all during these episodes, the engine was perfectly idling.
Then it hapenned during uniform highway coasting. I would be going at 120kph when I would loose power for 4-6 seconds. No wierd stutering or misfires. As if the fuel pump only gave enough gas to idle.
Then as of last week sometimes I would come to a stop at a stopsign press gas, and the engine would start to stutter real bad (I usually idle at 900-1000rpms), but the rpms would dropp to 500-600 range. Hard to say if it was misfiring or if fuel pump was having issues. I'd kick it in neutral, it would still misfire for a few seconds, then return to normal ~5 seconds later.
Then today during haighway speeds a really wierd thing hapenned. While accelerating at about 100kph the engine started to completely loose power, return to full power ultra quikly, like twice every second. Basically it would be jerking the car fairly hard twice a second.
I know from the write up it feels like I am loosing spark somewhere along the line, but could it be the fuel pump? It would explain the lag in acceleration after initial start-up.
LOL, knowing my luck it's prolly both ;p
Anyhoo, am just at work killing time, any suggestions are welcome though.
Will initially change rotor cap, plug wires, coil.
