View Full Version : First suv
Howah
03-04-2011, 09:31 AM
I just bought a mechanic special 95 montero sr for 800
Just replaced the followings
Plugs n wires
Thermostat
A/t fluid n filter
Oil n filter
Air cleaner
Serpentine belts
Shocks
I have a fuel leak right behind the intake manifold and a dead tachometer it would work when it wants to
Has any of u guys experience the problems above with the fuel leak and tach
I've tried tapping and wiggling on the ignition control module and cluster to no improvement.
I have half a tank of 87 octane left and its just not giving all its power.
Do you guys expierence the same with 87 octane?
Justice R
03-04-2011, 01:52 PM
I would put first priority on fixing the fuel leak. First it can catch fire and cause big problems. Second, you probably have low fuel pressure to the injectors because of it, which may or may not explain the lack of power. Fix that and go from there. The tach problem is common as these age, but I cant recall the fix for it. I believe the problem is in the instrument cluster though.
Howah
03-04-2011, 07:16 PM
So today i replace a worn out o ring on the feed line
Tach is still dead as well as lack n power or atleast i dont think im feeling the 200 ponies
Atleast its not leaking no more
Im gonna fill up with 91 octane on the next time to see if those 200 ponies comes alive
How do you adjust the kick down cable thats connected to the throttle valve?
Where do i find info on the type of gear oil for diff and transfer case?
Justice R
03-04-2011, 08:20 PM
go to mitsubishilinks.com
You should be able to download the FSM from there.
With my old 95 I noticed very little seat of the pants difference between 92 and 89 octane, but the engine will run optimally on 92.
Howah
03-05-2011, 06:35 AM
thanks
it seems so that the engine was either replace or rebuilt because it is super clean around it and no blow by gas
previous owner describe it as hesitating replace plugs but did not change ignition wires which was the main cause, it had a 18k ohms reading.
i hope the timing belt and components were recently done too
Howah
03-06-2011, 05:21 PM
Can someone please measure their kickdown cable in wot and close throttle on their montero sr
Im having difficulties downloading fsm
Howah
03-25-2011, 05:26 AM
My sr still runs crappy even with 91 octane. i've replace the fuel filter and have a new catalytic converter sitting here waiting for daylight to rise. it starts right up and idles fine but lacks acceleration, power, and stealing my fuel money like crazy. my civic 1.6L has better power than the montero. no check engine light on. it also lacks power while under load when at a slight incline, can't even maintain speed. the AT dash light is the last to turn off when i start up the car. the transmission when shifting does act weird but it could be due to sensors like a tps which i've replace with a junk yard one with no performance difference. i set up the tps by placing a .65mm on the sts and turning the tps till no continuity between pin 2 and 4 on tps. tps connection test out fine with 5v power in. i've develop a heavy foot for this montero because it's so slow.
things i haven't replace
AT transmission
o2 sensor
ignition coils
ignition control module ( i doubt its this)
fuel pump/ fuel pressure reg.
mass air flow sensor
vehicle speed sensor
knock sensor
exhaust muffler
Kind of an apples and oranges comparison, but I had an '87 comaro v6 5 speed that had similar symptoms and replacing the catalytic converter solved the problem...hth
Howah
03-25-2011, 06:29 PM
I thought it was a bad cat because the smog check results indicated a bad one so i order a walker ca cat and gutted the one on the car but it didnot help.
Silverwulf
03-25-2011, 11:19 PM
I thought of a couple of possibilities.
While not a montero, I had a jetta that when the egr valve lost the inner diaphram, the car lost 80% power.
~or~
Have you done a compression/ leakdown test.
Bad rings or valves can cause a loss of compression=low power.
HTH:coffee:
Howah
03-26-2011, 02:43 AM
I replace egr prior to smog. I thought i found the problem when i opened up the ecu and found a leaking capacitor. Replace that cap and no improvement. I did however disconnected the throttle valve cable and felt better shifting as well as little more power but nothing near what i think should be. Ive also test the maf and it seems to passed voltage test but couldnt do a Hz signal test and also stall when more than half of airflow is restricted. I lost my compression gauge so couldnt do one. I think its a tranny problem. This is the first car that ive own thats rated over 200 ponies but is nothing near what my 1.5L Mirage can do.
Howah
04-18-2011, 02:19 AM
what is the proper way to check resistance on the coils?
currently, i have no continuity on primary and secondary, however i have about 21k ohms on the two secondary post per coil.
are my coils shot?
Howah
06-25-2011, 04:34 AM
still not right yet.
i've replace all 3 ignition coil, fuel pump, maf sensor, plenum gasket.
it starts right up but lack power unless wot. o2 sensor is working fine. new egr valve
along with a clear passage. i have to floor it to get it pass 55mph. mpg is like 10mpg city with 91 octane. right bank cylinder compressions are 150, 140, 150
input needed
zukrider
06-25-2011, 06:50 AM
sounds like a tranny. does it rev ok when in neutral or park? or is it still sluggish? if it revs good in park, then i lean toward a bad trans as a whole, or bad torque converter.
Howah
06-25-2011, 04:17 PM
It rev up kinda slow in park and neutral. The stall speed on all gears is at 1750 rpm which i think is kind of low. Runs stronger when in reverse. throttle valve cable doesnt affect much when change but does when unhook. Tranny does shift smooth through all gears. Ever since i bought it, it has run well two times only and both of them were at night.
The things i've replace so far
Tranny fluid and filter
Engine oil and filter x2
Egr valve
Tps
Idle speed control motor
Fuel pump and filter
Spark plugs and wires
Ignition coils
Air filter
Plenum gasket
Vacuum lines
Maf sensor
Engine coolant sensor
Gutted cat converter
Left side cam gears are on the mark with timing but haven't check the rest.
Howah
06-26-2011, 02:45 PM
So yesterday i repaired the starter that went dead on me. Turn on the engine and got it up to operating temp and decided to test the knock sensor by banging on the intake and exhaust manifold with a hammer while at 2000rpm and it didnt affect the engine at all. I disconnect the sensor plug while engine was running and nothing happened, not even a check engine light.
Howah
06-27-2011, 03:07 AM
i think all of this is cause by engine running lean as indicated by o2 sensor. when i floor it, o2 reads .8v but would not hold or increase instead it flucuate down to .1v and .8v. correct me if im wrong but isn't at wot be around 1v and hold steady there.
btw, knock sensor produce voltage by itself and flucuates when i open egr to cause unstable idle.
Howah
06-28-2011, 02:06 AM
so today i decided to check out the fpr and while the intake manifold was off, i saw the knock sensor and it seemed wet on top. i got the ks off and it had some black gooey stuff on it and the wire appeared to have been repaired at the where the wire meets the ks with silicone.
it looks like ill have to order a ks. hope i fix it and not find more parts to replace.
off-roader
06-28-2011, 05:49 PM
so today i decided to check out the fpr and while the intake manifold was off, i saw the knock sensor and it seemed wet on top. i got the ks off and it had some black gooey stuff on it and the wire appeared to have been repaired at the where the wire meets the ks with silicone.
it looks like ill have to order a ks. hope i fix it and not find more parts to replace.
No offense intended but with what you've spent in replacement parts it may be worthwhile to consider bringing that to a good mechanic who can look at all the symptoms & diagnose the problem right the first time so you're not parts swapping to figure out what's wrong.
Howah
06-28-2011, 07:30 PM
most of the things that i've replace were either bad for example
the sparks plugs were old and not the right type
spark plug wires were out of spec
ignition coils were out of spec when engine warmed up
tps had a short
tranny filter and fuild were dark as heck
egr had a leak
fuel pump was from my bros civic
idle speed motor couldn't keep constant idle
cat converter was rattling
sooner or later these things had to be replace and it just happens to be all at once.
off-roader
06-28-2011, 10:44 PM
most of the things that i've replace were either bad for example
the sparks plugs were old and not the right type
spark plug wires were out of spec
ignition coils were out of spec when engine warmed up
tps had a short
tranny filter and fuild were dark as heck
egr had a leak
fuel pump was from my bros civic
idle speed motor couldn't keep constant idle
cat converter was rattling
sooner or later these things had to be replace and it just happens to be all at once.
Ok. Just wanted to be sure you weren't throwing parts at the problem w/out properly diagnosing it. That said, I still recommend you take it to a good diagnostician (can be hard to find one) and let him/her have a stab at it.
As for the Idle Speed Motor, it was also probably bad (common failure item when not kept clean) but did you bother measuring the coil resistance on it to be sure? There's a procedure in the factory manual in case you didn't. I'd check that before you throw it away or send it off to be rebuilt/refurbished.:ylsmoke:
Howah
07-13-2011, 04:38 PM
Swaping out fpr from 6g72 doch diamante did the job. Just made it in time for my camping trip this weekend.
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