Mexplorer
Active Member
- Joined
- August 9, 2005
- Messages
- 67
- Reaction score
- 0
- City, State
- Nayarit, Mexico
- Year, Model & Trim Level
- 96 XLT
Well, i had my tranny repaired due a leak in the bellhousing (it was the front pump seal) and was in the shop 2 days. Before that, i was getting ONLY the P0401 , which i think is for a bad dpfe sensor. After the transmission repair, i noticed a strange noise in the exhaust system; it was louder. I left the shop thinking it was a normal thing. Yesterday i plugged my code reader and got two codes: the habitual P0401 and now a P0420, which i know what it means.
I did a search in the forum for this code, and all the people recommends changing the 02 sensors. But i know these are very strong units and they arent prone tho fail easily, so i have read multiple stories about changing perfectly working O2 sensors, fixing the problem for a week or 2, and getting the CEL again for the same thing.
Maybe the mechanic installed improperly the exhaust system when he removed the tranny ? I went to ask to the shop about this, and they said they removed some carbon buildup in the exhaust system when they were working in the trans, so that is why my truck is louder ??
The only thing i suspect for the noisier exhaust is this connection after the rear cat and the muffler. When i put my hand over this, i can feel the air coming, so, do i need to tighten more the 2 bolts ? i attached a drawing from the repair cd manual.
If you have pics of a stock exhaust system, would be very appreciated.
How do i get rid of the p0420 code ? i erased it, seeing if it comes back.
My truck only has 99,000 miles. Is a V6 1996 OHV.
I did a search in the forum for this code, and all the people recommends changing the 02 sensors. But i know these are very strong units and they arent prone tho fail easily, so i have read multiple stories about changing perfectly working O2 sensors, fixing the problem for a week or 2, and getting the CEL again for the same thing.
Maybe the mechanic installed improperly the exhaust system when he removed the tranny ? I went to ask to the shop about this, and they said they removed some carbon buildup in the exhaust system when they were working in the trans, so that is why my truck is louder ??
The only thing i suspect for the noisier exhaust is this connection after the rear cat and the muffler. When i put my hand over this, i can feel the air coming, so, do i need to tighten more the 2 bolts ? i attached a drawing from the repair cd manual.
If you have pics of a stock exhaust system, would be very appreciated.
How do i get rid of the p0420 code ? i erased it, seeing if it comes back.
My truck only has 99,000 miles. Is a V6 1996 OHV.