2000 Trooper engine problems - Page 3

amigo-2k · 03-02-2005, 09:29 PM

http://www.automotiveforums.com/vbul....php?p=2854894

info on the TSB above.

trooperbrett · 03-09-2005, 10:54 PM

Well, finally got the plugs, I ordered them from sparkplugs.com because I could not find them in town except at the dealer. Changed them out but no change (they are excatly what came out, Denso) . So, I've:
1) Replaced the intake manifold gaskets
2) Cleaned the EGR valve and tube/port
3) Cleaned and checked PCV Valve
4) Cleaned the MAF sensor
5) Changed spark plugs
6) Tapped (BEAT) on the fuel rail
7) Changed fuel filter
It still misses and stutters at cruise and under acceleration, I've run out of ideas, if anyone has any suggestions please let me know, otherwise we'll have to take it into the shop on Monday.

Thanks for all your help,
Brett

trooperbrett · 03-09-2005, 10:56 PM

Well, finally got the plugs, I ordered them from sparkplugs.com because I could not find them in town except at the dealer. Changed them out but no change (they are exactly what came out, Denso), still misses and stutters under acceleration and at cruise when warm . So... I've:
1) Replaced the intake manifold gaskets
2) Cleaned the EGR valve and tube/port
3) Cleaned and checked PCV Valve
4) Cleaned the MAF sensor
5) Changed spark plugs
6) Tapped (BEAT) on the fuel rail
7) Changed fuel filter
I've run out of ideas, if anyone has any suggestions please let me know, otherwise we'll have to take it into the shop on Monday.

Thanks for all your help,
Brett

trooperbrett · 03-14-2005, 04:07 PM

Took it in ,it seems they think it is a coil going bad. Does anyone know a way to check for this, or just get one and replace them one at a time until the bad one is found? They're going to replace it and then call me tomorrow, wish me luck!

Brett

amigo-2k · 03-14-2005, 04:22 PM

they can just move the coil to another spot and it should toss a code that the coil is bad in the new spot.

FYI: St. Charles sells the coil with boot for 103 bucks shipped.

Maybe you have water in your gas? Have you tried addind a bottle of HEET to your gas (cost 0.89); worth a shot.

trooperbrett · 03-15-2005, 10:19 PM

Yep, that was it, it runs like a top now (WHEW!). I know the intake manifold was bad and the plugs had 50,000 miles so I really didn't waste any money or time, thanks to you guys. They say that the coil on cylider #2 was bad and the one on #3 is "breaking down". My question now is how are the cyliders numbered? That way I'll know which one it is.

Thanks,
Brett

tinytrixie · 03-15-2005, 11:26 PM

Was the coil totally out? When one of ours failed it ran really bad, the miss was pretty strong. My wife came home one day & said the truck was running terrible. I drove it & felt that a plug had fouled, (we were over 100k on originals) so to isolate which one I unplugged the coils one at a time(turning off engine in between) until the engine didn't change or didn't miss even more. Then I swapped the suspect coil with the one next to it and the bad miss switched cylinders. What did they charge you for the coil? Amigo or rodeo02 if you are out therewhat is the resistance of the primary & secondary coils?

travelman · 03-16-2005, 07:18 PM

Rear
5 6
3 4
1 2
Front Is the order.

Don't know the coil resistance readings but unless they all fail at the same time you should be able to measure them all to find the suspect one(s).

tinytrixie · 03-16-2005, 07:36 PM

good point!

dramey_2004 · 03-16-2005, 08:06 PM

Hey man if you put premium and it did run better that tells me that you have carbon deposits in the cylander. take the mass air flow if equipted off and the air filter where you have a strait shot into the intake and get a spray bottle of water and take the throtale up and down while spraying water into your intake witch if you have ever seen a car with a bad head gasket where it leaked water into the cylander it is clean as can be. Trust me with this just be carefull

amigo-2k · 03-16-2005, 08:58 PM

Added this to the FAQ's

Quote:

Originally Posted by travelman

Rear
5 6
3 4
1 2
Front Is the order.

trooperbrett · 03-17-2005, 10:33 AM

Thanks everybody for all your help, my Trooper is now happy and healthy! When the other coil goes I have the info to change it myself, and a place to get it from, plus I'm not scared to try to fix things myself (my wife's still scared though). When things go wrong again I know where to turn now.
Thanks again everyone, esp. Amigo-2K, Rodeo02, and Travelman!!!

Brett, aka "happy"trooperbrett

travelman · 03-17-2005, 01:50 PM

Trooperbrett - I agree with a previous suggestion that you put a new coil pack or two in there ASAP and keep the current problematic one(s) as a spare. If you don't you could be in for a bad suprise if one completely fails. With my luck it would fail in the wrong part of town at the wrong time of night and in bad weather.

More likely though the spark will just keep getting weaker and weaker. At today's gasoline prices even a teeny-tiny mileage hit from such a weaker ignition could cost you more than just buying a brand new one(s) now. I bought a used one off Ebay just for a trail spare. I have even seen supposedly new ones there for bargain prices. I have never priced a salvage yard but they might also have some less pricey options for you.

215garcia · 01-16-2006, 08:58 AM

My Suv has been running very high idle, there is a red check mark flashing on the left side of the dash board on the torgue gear draft . everytime I move the gear to a different drive it jumps and make a lot of noise . i dont know what is wrong with it it burns too much gas, and it does not drive fast at all and lately it has been cuting off sometimes.
where it does not work. I just changed the starter recently. I dont its a starter issue somone said that the calibretor needs to be change I dont know wht that is. but the cars has more than one problem please help......................................

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