1995 Nissan pickup running rough at idle, especially with air conditioner on

10

Asked by Guru1WPDT Aug 27, 2019 at 06:47 PM about the 1995 Nissan Pickup

Question type: Maintenance & Repair

Yes my 19951 Nissan runs very rough at idle especially when air conditioning
is on and sometimes even backfires and dies. I have replaced the O2 sensor,
new rotor, rotor cap, spark plugs, spark plug wires, fuel filter, and air cleaner.
Someone recommended checking for vacuum leak so I visually checked
found the one from the egr valve and the egr solenoid/sensor, it was basically
melted, I replaced it and the other vacuum hoses look ok.
Help any suggestions? Thanks

15 Answers

4,130

back fires is timing . Sounds like you didn't have the no one piston at DTC when you put in the new distributor if that what you meant by new rotor. If you meant new rotor button and distributor cap. Check the rotor button and cap are installed correctly.

10

Yea it was running rough before I replaced the rotor and distributor cap. Any other ideas? Thanks

4,130

the back fire makes me think check if the distributor is loose .It sounds like it has turned some from when it was once timed. The only other thing that relates to timing is cam sensor to ECM to Coils and plugs, Crank it up and unplug one coil at a time see if it gets worse. Sounds like it could be a failed coil that would cause a miss fire. No codes stored?

10

The backfire is rare and minor, but the missing when the air is on is more pronounced, once the truck gets going up to speed it stops missing Thanks

10

Yes I forgot to mention that I already added Lucas fuel treatment to my last tank of gas Any ideas? Thanks

1 people found this helpful.
4,130

https://www.bing.com/videos/search?q=how+to+diagnois+a+clogged+cat&&view=detail&mid=7426DC9705BA3E22F81D7426DC9705BA3E22F81D&rvsmid=C70A30146505550838A3C70A30146505550838A3&FORM=VDQVAP

20

FICD...AAC....CHECK THEM BOTH. FICD works in conjunction with your AAC. (IAC) when you turn on the AC, the FICD activates and lets more air in to run AC and keep idle normal.

1 people found this helpful.

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