Hammering / knocking noise on 4.0L6 '99 Cherokee
11-16-2003, 06:16 PM
#41
Guest
Posts: n/a
Re: Hammering / knocking noise on 4.0L6 '99 Cherokee
that engine needs to come apart now! before any more driving it damages it farther
Robert Goldpalm wrote:
> Thanks again for all the suggestions.
>
> So far, I have now:
>
> -Drained about one quarter of oil, refilled
> with ATF and driven the car about 100 miles.
>
> -Made a complete oil & filter (Mopar) change to Valvoline Maxlife
> 10W-40, a heavier weight oil as suggested here.
>
> -This is the second day now with a 10W-40 oil fill, and this
> morning, the engine has made again this distinct noise at
> cold (82 F) start. The noise did not go away for a few minutes,
> then resided from a loud metallic tick to a softer, more subdued
> ticking sound that could be still heard most of the time during
> driving.
>
> -To accurately describe the sound is not so easy, but I would
> say, it is similar to a smaller direct injected diesel engine,
> comming from cylinder 6 or 5.
>
> Does that sound like a lifter noise? If yes, what are the prospects?
> Can the engine deteriorate more, or is it just an annoyance, one has to get used to?
>
> The dealer where the car was purchased, switched from Chrysler
> to Land Rover recently, and Jeeps are serviced now by the local Mercedes
> dealer. There, they have only one mechanic who is responsible for
> Jeeps, and he admitted, that he actually has never opened a 4.0 L/6
> engine before.
> Now, unlucky me, if the engine really needs replacement lifters,
> that guy will somehow experiment with my engine for the first time.
> I can also not sell the car because of the noise it makes. I could just
> drive until something gives, and that would be it, but perhaps it would
> be a long way from now.
>
> So, what do you think?
Robert Goldpalm wrote:
> Thanks again for all the suggestions.
>
> So far, I have now:
>
> -Drained about one quarter of oil, refilled
> with ATF and driven the car about 100 miles.
>
> -Made a complete oil & filter (Mopar) change to Valvoline Maxlife
> 10W-40, a heavier weight oil as suggested here.
>
> -This is the second day now with a 10W-40 oil fill, and this
> morning, the engine has made again this distinct noise at
> cold (82 F) start. The noise did not go away for a few minutes,
> then resided from a loud metallic tick to a softer, more subdued
> ticking sound that could be still heard most of the time during
> driving.
>
> -To accurately describe the sound is not so easy, but I would
> say, it is similar to a smaller direct injected diesel engine,
> comming from cylinder 6 or 5.
>
> Does that sound like a lifter noise? If yes, what are the prospects?
> Can the engine deteriorate more, or is it just an annoyance, one has to get used to?
>
> The dealer where the car was purchased, switched from Chrysler
> to Land Rover recently, and Jeeps are serviced now by the local Mercedes
> dealer. There, they have only one mechanic who is responsible for
> Jeeps, and he admitted, that he actually has never opened a 4.0 L/6
> engine before.
> Now, unlucky me, if the engine really needs replacement lifters,
> that guy will somehow experiment with my engine for the first time.
> I can also not sell the car because of the noise it makes. I could just
> drive until something gives, and that would be it, but perhaps it would
> be a long way from now.
>
> So, what do you think?
11-16-2003, 06:16 PM
#42
Guest
Posts: n/a
Re: Hammering / knocking noise on 4.0L6 '99 Cherokee
that engine needs to come apart now! before any more driving it damages it farther
Robert Goldpalm wrote:
> Thanks again for all the suggestions.
>
> So far, I have now:
>
> -Drained about one quarter of oil, refilled
> with ATF and driven the car about 100 miles.
>
> -Made a complete oil & filter (Mopar) change to Valvoline Maxlife
> 10W-40, a heavier weight oil as suggested here.
>
> -This is the second day now with a 10W-40 oil fill, and this
> morning, the engine has made again this distinct noise at
> cold (82 F) start. The noise did not go away for a few minutes,
> then resided from a loud metallic tick to a softer, more subdued
> ticking sound that could be still heard most of the time during
> driving.
>
> -To accurately describe the sound is not so easy, but I would
> say, it is similar to a smaller direct injected diesel engine,
> comming from cylinder 6 or 5.
>
> Does that sound like a lifter noise? If yes, what are the prospects?
> Can the engine deteriorate more, or is it just an annoyance, one has to get used to?
>
> The dealer where the car was purchased, switched from Chrysler
> to Land Rover recently, and Jeeps are serviced now by the local Mercedes
> dealer. There, they have only one mechanic who is responsible for
> Jeeps, and he admitted, that he actually has never opened a 4.0 L/6
> engine before.
> Now, unlucky me, if the engine really needs replacement lifters,
> that guy will somehow experiment with my engine for the first time.
> I can also not sell the car because of the noise it makes. I could just
> drive until something gives, and that would be it, but perhaps it would
> be a long way from now.
>
> So, what do you think?
Robert Goldpalm wrote:
> Thanks again for all the suggestions.
>
> So far, I have now:
>
> -Drained about one quarter of oil, refilled
> with ATF and driven the car about 100 miles.
>
> -Made a complete oil & filter (Mopar) change to Valvoline Maxlife
> 10W-40, a heavier weight oil as suggested here.
>
> -This is the second day now with a 10W-40 oil fill, and this
> morning, the engine has made again this distinct noise at
> cold (82 F) start. The noise did not go away for a few minutes,
> then resided from a loud metallic tick to a softer, more subdued
> ticking sound that could be still heard most of the time during
> driving.
>
> -To accurately describe the sound is not so easy, but I would
> say, it is similar to a smaller direct injected diesel engine,
> comming from cylinder 6 or 5.
>
> Does that sound like a lifter noise? If yes, what are the prospects?
> Can the engine deteriorate more, or is it just an annoyance, one has to get used to?
>
> The dealer where the car was purchased, switched from Chrysler
> to Land Rover recently, and Jeeps are serviced now by the local Mercedes
> dealer. There, they have only one mechanic who is responsible for
> Jeeps, and he admitted, that he actually has never opened a 4.0 L/6
> engine before.
> Now, unlucky me, if the engine really needs replacement lifters,
> that guy will somehow experiment with my engine for the first time.
> I can also not sell the car because of the noise it makes. I could just
> drive until something gives, and that would be it, but perhaps it would
> be a long way from now.
>
> So, what do you think?
11-16-2003, 06:16 PM
#43
Guest
Posts: n/a
Re: Hammering / knocking noise on 4.0L6 '99 Cherokee
that engine needs to come apart now! before any more driving it damages it farther
Robert Goldpalm wrote:
> Thanks again for all the suggestions.
>
> So far, I have now:
>
> -Drained about one quarter of oil, refilled
> with ATF and driven the car about 100 miles.
>
> -Made a complete oil & filter (Mopar) change to Valvoline Maxlife
> 10W-40, a heavier weight oil as suggested here.
>
> -This is the second day now with a 10W-40 oil fill, and this
> morning, the engine has made again this distinct noise at
> cold (82 F) start. The noise did not go away for a few minutes,
> then resided from a loud metallic tick to a softer, more subdued
> ticking sound that could be still heard most of the time during
> driving.
>
> -To accurately describe the sound is not so easy, but I would
> say, it is similar to a smaller direct injected diesel engine,
> comming from cylinder 6 or 5.
>
> Does that sound like a lifter noise? If yes, what are the prospects?
> Can the engine deteriorate more, or is it just an annoyance, one has to get used to?
>
> The dealer where the car was purchased, switched from Chrysler
> to Land Rover recently, and Jeeps are serviced now by the local Mercedes
> dealer. There, they have only one mechanic who is responsible for
> Jeeps, and he admitted, that he actually has never opened a 4.0 L/6
> engine before.
> Now, unlucky me, if the engine really needs replacement lifters,
> that guy will somehow experiment with my engine for the first time.
> I can also not sell the car because of the noise it makes. I could just
> drive until something gives, and that would be it, but perhaps it would
> be a long way from now.
>
> So, what do you think?
Robert Goldpalm wrote:
> Thanks again for all the suggestions.
>
> So far, I have now:
>
> -Drained about one quarter of oil, refilled
> with ATF and driven the car about 100 miles.
>
> -Made a complete oil & filter (Mopar) change to Valvoline Maxlife
> 10W-40, a heavier weight oil as suggested here.
>
> -This is the second day now with a 10W-40 oil fill, and this
> morning, the engine has made again this distinct noise at
> cold (82 F) start. The noise did not go away for a few minutes,
> then resided from a loud metallic tick to a softer, more subdued
> ticking sound that could be still heard most of the time during
> driving.
>
> -To accurately describe the sound is not so easy, but I would
> say, it is similar to a smaller direct injected diesel engine,
> comming from cylinder 6 or 5.
>
> Does that sound like a lifter noise? If yes, what are the prospects?
> Can the engine deteriorate more, or is it just an annoyance, one has to get used to?
>
> The dealer where the car was purchased, switched from Chrysler
> to Land Rover recently, and Jeeps are serviced now by the local Mercedes
> dealer. There, they have only one mechanic who is responsible for
> Jeeps, and he admitted, that he actually has never opened a 4.0 L/6
> engine before.
> Now, unlucky me, if the engine really needs replacement lifters,
> that guy will somehow experiment with my engine for the first time.
> I can also not sell the car because of the noise it makes. I could just
> drive until something gives, and that would be it, but perhaps it would
> be a long way from now.
>
> So, what do you think?
Thread
Thread Starter
Forum
Replies
Last Post
tool_guy
General Jeep and Tech Talk.
0
04-08-2011 09:47 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)