Clueless
federalbmx
08-03-2006, 10:03 PM
I have a 1992 Crown Victoria Lx and its been sitting for 2 years maybe started a couple times. I recently got the alternator rebuilt. well I brought it down to a repair shop to have the brakes fixed and when i hit the gas white smoke comes out of the exhaust. some people i know think its the oil needs to be changed or water built up somewhere but my mechanic said i need a new engine because its burning oil. I dont know what to do. if its just because it was sitting for so long or something. If i need to get a new engine i was wondering if i could put a 5.0L engine in with no problems. i currently have a 4.6.
fordfan4life
08-04-2006, 08:14 AM
Well, if it is white smoke, it isn't oil (a blue coloration denotes oil)... But as for burning oil, it probably does. The first-gen 4.6L V8s are known for this... the valve stem seals become brittle, and no longer seal properly. But this is no reason to have to replace the engine. Since it is simply leaking around the seal of the valvestem and not from around the piston into the combustion chamber, the engine is not being hurt. It will run virtually forever like this, as long as you remember to top off the oil with a quart every few hundred miles. But again, this is no reason to have to replace the engine.
federalbmx
08-04-2006, 09:27 AM
any way to fix this?
fordfan4life
08-04-2006, 09:34 AM
http://crownvic.net/tech/valvestem.htm
It's really not worth it, though. The general consensus by most owners of these cars is just to live with it, since it's not hurting anything. A little oil doesn't cost much, anyway.
If by some chance you do get it fixed, you will want to make sure the EGR channels are cleaned, because, from what I have heard, that is what causes these seals to go bad. (BTW, if your check engine light is on, the clogged EGR channels are probably the culprit).
It's really not worth it, though. The general consensus by most owners of these cars is just to live with it, since it's not hurting anything. A little oil doesn't cost much, anyway.
If by some chance you do get it fixed, you will want to make sure the EGR channels are cleaned, because, from what I have heard, that is what causes these seals to go bad. (BTW, if your check engine light is on, the clogged EGR channels are probably the culprit).
federalbmx
08-04-2006, 09:38 AM
well if my car smokes white smoke i mean id really hate it if a cop was behind my and pulls me over for it. no the only light on right now is my brake light. any info on switching to a 5.0?
fordfan4life
08-04-2006, 09:52 AM
Swapping it for a 5.0 would involve lots of money, time, and hard work. The 5.0 is not a direct fit for anything; tranny, mounts, wiring, nothing. The 5.0 works best in a much lighter car, while the Crown Vic was designed for an engine with lots of low-end torque.
You would be much better off finding a lightly used 4.6 engine and swapping it. As for this white smoke issue, is it burning coolant?
You would be much better off finding a lightly used 4.6 engine and swapping it. As for this white smoke issue, is it burning coolant?
KimMG
08-04-2006, 12:59 PM
Does the exhaust smell like raw gas or burning coolant? Have you checked the coolant and oil levels? Did you check the brake fluid level? Did you have the brakes fixed?
ModMech
08-05-2006, 02:04 PM
Swapping it for a 5.0 would involve lots of money, time, and hard work. The 5.0 is not a direct fit for anything; tranny, mounts, wiring, nothing. The 5.0 works best in a much lighter car, while the Crown Vic was designed for an engine with lots of low-end torque.
The 4.6L makes peak Tq at 4200 RPM, that is NOT "low-end".
You would be much better off finding a lightly used 4.6 engine and swapping it. As for this white smoke issue, is it burning coolant?
I agree 100%. 6-8 hours of work, plus about $500 will get you a much newer complete engine.
The 4.6L makes peak Tq at 4200 RPM, that is NOT "low-end".
You would be much better off finding a lightly used 4.6 engine and swapping it. As for this white smoke issue, is it burning coolant?
I agree 100%. 6-8 hours of work, plus about $500 will get you a much newer complete engine.
Automotive Network, Inc., Copyright ©2024