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Weird engine stumble / misfire
Sorry if this is the wrong place to put this thread I’m new to the forum and only really use facebook groups. This is kind of a long one but my truck was running good until I switched over to an mpfi spider injector system (a “reman” acdelco unit from a guy on eBay) and after installation the...- BradynS
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- engine k1500 misfire mpfi spider injector stumble vortec 350
- Replies: 8
- Forum: Engine Performance + Maintenance
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98 K2500 454 Vortec Stumble.
Howdy, long time listener, first time caller. Recently picked up a 1998 K2500 suburban with the 454. Ive thrown a parts cannon at this truck to fix a tip in stumble, to absolutely no avail. First code that showed up was an egr, replaced that, saw it had bad wires (arcing on randon stuff)...- B1shup
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- 454 7.4l ignition timing stumble
- Replies: 10
- Forum: Engine Performance + Maintenance
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1997 5.7 Vortec misfire/stumble
Hello everyone I have a 1997 Suburban that's giving me a fit. Generally can diagnose anything but after thinking for a few weeks and trying a few things I'm interested to hear some ideas outside the box. Truck only has 120k original miles. The issue I have is when it warms up and goes into...- DaHoe
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- buck converter hesitation jerk misfire stumble torque
- Replies: 25
- Forum: Engine Performance + Maintenance
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Full throttle problem
SORRY FOR THE LONG POST NEED YALLS HELP!!!!! Been a forum stalker for a long time.... love this site, and was planning a build thread..Ok, I've been doing this a long time and I think a tune is the answer but im looking for some help....I've followed this forum for a long time and there are A...- ZSC-114
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- 5 speed built drift truck help lowered performance race truck stumble tbi ultimate tbi
- Replies: 11
- Forum: Engine Performance + Maintenance
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Backfiring, Bucking and stumbling
I've got a 1995 Chevrolet Tahoe 5.7L 4wd 4l60e and it backfires at any rpm. I started with the basics; fueling, timing spark, and found everything was in spec. I'll put together a list of new parts and their brands if I can recall them(Don't get mad at me for throwing parts at it, I had these...- TwistedTahoe
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- 1995 backfire check engine help obd1 service engine soo ses stumble stumbling tahoe
- Replies: 3
- Forum: Engine Performance + Maintenance
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Engine stumbles but only in drive
Ok well this is a new one for me. I have a 2000 k2500 crew cab sb. Small block 350 engine. Truck runs awesome but sometimes when I’m in drive and sitting still the truck with lug down to just above stalling then over compensate and rev up slightly. It won’t go till the point of dying. When you...- rebel04343
- Thread
- stumble
- Replies: 9
- Forum: Engine Performance + Maintenance
