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Chevy Blazer GMC Jimmy Maintenance and Repair

3455 messages,  Last post on Dec 08, 2009 at 6:04 PM

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What is this discussion about? Chevrolet Blazer, GMC Jimmy, SUV

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#3437 of 3455 Re: 1993 gmc jimmy [fdw1] by jlflemmons Oct 14, 2009 (9:00 am)
Replying to: fdw1 (Oct 14, 2009 8:15 am) First, change the oil. You have a dangerous situation when gas gets in the oil pan. Second, it sounds like you have a leaking CPI that could be flooding the cylinder when the engine is not running. There is a regulator and a "spider assembly" involved in the fuel injection system, and the leak could be coming from here.
#3438 of 3455 Re: 1993 gmc jimmy [fdw1] by jstamey Oct 16, 2009 (4:01 pm)
Replying to: fdw1 (Oct 14, 2009 8:15 am) I had a 93 Astro, with A vortec motor.Did the same thing to my van, Spider Injecter broke a line,filled up my oil.Not to hard to change,but cost $300 for the part .Hope it helps you to know?
#3439 of 3455 Fuel Injection Setup by sticky23 Oct 19, 2009 (8:55 pm)
Hi guys I was wondering what kind of injection system my 2000 blazer 4.3 v6 has?It looks like throttle body injection to me.Its definatly not multi port.The reason I'm asking is my blazer which i just did a tune up on runs AWSOME except for when I floor the gas it seems 2 stumble a little and seems to struggle gettin up to rpms.3/4 throttle it RIPS!This truck does not smoke,burn oil or leak any fluids but it does have high mileage!   PS:If I start this truck and take off right away it the engine doesnt seem to wanna go .I have to let it warm for 20 seconds or so.What do you guys think?Has anyone else had this problem?Remember this truck runs very very good except when I floor it and even then its not terrible buts its not 100% either.PLEASE HELP!Thank you guy's very much!!!!!!!!!!!!!!!!!!!!!!!!!! Replies to this message: jlflemmons (Oct 20, 2009 11:37 am)
#3440 of 3455 Fuel Pressure Regulator by 00blazer1 Oct 20, 2009 (6:16 am)
I have a 2000 s-10 style blazer and have problems starting with out shooting throttle body cleaner into it. Fuel pressure is low. we've come to the conclusion that its the pressure regulator. Can someone please link or tell me how to change it? I have the part but not sure if there is something I need to know about changing one beffore I get into it. Thanks in advance
#3441 of 3455 Re: Fuel Injection Setup [sticky23] by jlflemmons Oct 20, 2009 (11:37 am)
Replying to: sticky23 (Oct 19, 2009 8:55 pm) Depending upon the mileage, you could have a bad throttle position sensor. Fancy name for a little device that tells the computer how far down you are pushing the throttle. When bad, these can do everything from screw up the idle to causing stumbles during throttle transitions to the symptom you described.   And yes, you do have multiport fuel injection. What you are seeing that looks like a throttle body injection is just the "air valve" to the engine. The injectors are not visible from the outside.
#3442 of 3455 Re: 2000 Blazer Electrical Problem [rafike32] by tim153 Oct 21, 2009 (8:56 pm)
Replying to: rafike32 (Aug 24, 2006 8:57 am) I am having the same problems. 98 Jimmy that starts and drives but many electric items are not working. Head lights will not come on, but high beams work, No radio, heater, outside temp is not working. NO inside lights, 2WD/4WD lights are not on, and no tach, speed, mile indicator.   This is strange any ideas where to start? I though it was the wire harness going from the fire wall to the keyed switch so i changed that and it did not help.
#3443 of 3455 97 4 door Spare tire carrier by bluejay5 Oct 27, 2009 (4:38 pm)
Any one have an idea on how to lube the cable assy. that holds the spare up under the blazer? Glad I was home in the driveway when I tried to lower it and not out on the road someplace, had to use by biggest screw driver and 12" cresent wrench to get it started down, after about 3" all was fine but I would rather not try my luck when I need to use the spair. Thanks Replies to this message: jlflemmons (Oct 27, 2009 8:12 pm) bluejay5 (Oct 29, 2009 7:34 am)
#3444 of 3455 Re: 97 4 door Spare tire carrier [bluejay5] by jlflemmons Oct 27, 2009 (8:12 pm)
Replying to: bluejay5 (Oct 27, 2009 4:38 pm) Wash all the dirt and grime out, hit it with WD40 to stop any rust, then go with a good dry lube. You want to use a spray on dry lube liberally, but avoid things like grease as they will tend to catch and hold road grime. Replies to this message: bluejay5 (Oct 29, 2009 7:34 am)
#3445 of 3455 Re: 97 4 door Spare tire carrier [jlflemmons] by bluejay5 Oct 29, 2009 (7:34 am)
Replying to: jlflemmons (Oct 27, 2009 8:12 pm) Thanks I had been thinking along the same line.
#3446 of 3455 95 GMC Jimmy Rough Idle by groby Oct 29, 2009 (9:53 pm)
I have a 95 jimmy. it has started to idle rough, and now comes close to dying when I stop suddenly or shift gears. it also failed emisions testing in the idle with 391 HC (PPM). check engine light is on but i can't get a scanner to work. scanner says it can't make a connection with my car? Any ideas? thanks Replies to this message: Mr_Shiftright (Oct 30, 2009 9:14 am)

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