Engine or Tranny issues, help me diagnose please.

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Old#7

Old#7

10 Year 15 Year
Joined
Sep 16, 2007
Threads
36
Messages
212
Location
Western Wonderland
Not sure where to start but, Within the last 2 months or so, when I start up the cruiser it runs with no stumbling or weird idle issues. I back out of the drive way and shift into "D". Once I start moving forward it feels like it is stumbling and even when I push on the gas it doesn't want to accelerate. Now for the other weird part, I tried pushing it immediately into "N" and rev it up. It does so super smoothly and doesn't stumble at all. I shift back into "D" and it sounds like it is almost coughing and sputtering again. If I feather the Gas up and down a number of times, it will suddenly kick in and roar back to life, with the seat of the pants get up and go I am used to. Once this has happened and I am going it doesn't act any different at all. It seems that it happens more often than not when the cruiser has been sitting for a few days. No codes thrown or any lights in the dash at all.
Any thoughts?
 
I hope it's something else, but that's very similar to what happened when my transmission failed. Except it would stall when placed in a driving gear.


...via IH8MUD app
 
Takes certain parameters within a certain amount of time to trip the CEL. So, you may have the symptoms, but it may not be frequent enough to trigger the light. I think it was reguderian that dealt with that for several months before the CEL finally popped up.
 
If it was a coil, I wouldn't expect it to run smoothly when not in gear.
 
Old#7 said:
Any idea on the cost of just replacing all 8?
Click to expand...
No idea as to cost, but I'd say worth pulling all 8 and having them checked at a parts store. Testing is free.

Steve
 
That's similar to how mine was acting before I discovered a blown spark plug which took out the coil pack.
 
So revs smoothly in park/neutral or reverse but not in D when cold. Runs ok when warm. Problem worse after sitting a few days. Sure sounds like somehow related to the transmission. Is tranny fluid ok now?
 
I had problems like that. It can be many things, and it happened in the middle of me having several coils go bad and throw codes. It then "stumbled"/missed/hesitated - usually in D and R, but not in P or N, for months without throwing any codes. Dealer finally diagnosed "loose spark plugs". Not a single issue since then. Coils can take a while to throw a code, and remember - the code isn't specific to a coil, only to a cylinder misfire, which can come from plug, wire, coil, injector, etc. etc. although coil is by far the most likely.
 
Have you cleaned or checked your throttle body? It's virtually free to give it a good scrubbing and see if that he. It happened to me very similar to what you described. Mine was a throttle body position sensor code or something. It turned out to be a very dirty throttle body. A quick spray and scrub cured my problem.
I thought I blew my tranny when I put it from reverse I to drive. It CLUNKED something awful! Good luck with your problem.


...via IH8MUD app
 
12guns said:
Have you cleaned or checked your throttle body? It's virtually free to give it a good scrubbing and see if that he. It happened to me very similar to what you described. Mine was a throttle body position sensor code or something. It turned out to be a very dirty throttle body. A quick spray and scrub cured my problem.
I thought I blew my tranny when I put it from reverse I to drive. It CLUNKED something awful! Good luck with your problem.


...via IH8MUD app
Click to expand...
i am having similar issues in my LX470 99, it feels like the CDL is locked or the power steering is bad....

when starting up from stop its feels sluggish, almost crawling, and it gets worse when making a sharp turn in a parking lot or wherever, almost to the point where the front tires grab and chirp like they do when you DO have you CDL engaged (but may not know it).

tires don't grab as much as when locked, but it definitely does not feel normal.

have had front wheel bearings checked twice by lifting truck and "shaking" or checking "play" in each front wheel and they seem ok

tires have proper inflation
power steering fluid is full but is very dark almost like coffee colored, may drain and add new there to see..

but when moving it seems ok, don't think tranny, nothing is grinding, and when i click to neutral the truck rolls almost more freely if on incline, i have greased my rear drive shaft over greased it a couple times, have not done front one yet, could there be more slack in front drive shaft since the rear is full now??

also have heard about the transmission crossmember being a cause of driveline slack, and slack may be causing some of my issues??

best way i can describe it is feels like i am in cement when i am starting from a stop, and the truck definitely does not have the get up and go she should.

recently changed all plugs when i had a coil pack go out, but it ran great for a month or so, then this

any thoughts greatly appreciated

I do have a CEL but it is for a bad cat, at least i think it is still for the cat, i need to check and see if new codes are throwing, duh
 
Is it possible you are describing limp mode? After my awful clunk I was in limp mode until I restarted. Sounds a lot like your symptoms. I have not had any issues since cleaning the throttle body, that's why I mentioned it.


...via IH8MUD app
 
12guns said:
Is it possible you are describing limp mode? After my awful clunk I was in limp mode until I restarted. Sounds a lot like your symptoms. I have not had any issues since cleaning the throttle body, that's why I mentioned it.


...via IH8MUD app
Click to expand...
Not sure about limp mode. It seems to go away upon acxeation but truck doesn't run or drive right. Feels like bad alignment or tires loud and rough not smooth like it should just had cel checked again and it is still theno2 sensor. Nothing new. Had both cost cut out due to rattle just haven't replaced them yet due to funds. Know it's running rich bc of that but seems odd the drive and feel so sluggish. I'll clean throttle buddy and see. Any thoughts are appreciated
 
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