Question about 1998 Chevrolet K1500

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Engine surgeing i have a 98 1500 w/4.3 w/5 speed engine surgeing like the a/c is kicking on and off real fast noticed the problem after fuel fill up seen new 10% ethenol sign on the pump and lost about 50 miles on every tank on gas since then about three tanks ago

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You may want to look at your egr beacuse if it gone bad the engine will surge at take off all so check your injecters they may going bad

Posted on Sep 22, 2008

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What is causing the fast Idle and slowing down


well gee, there are 50 reasons.
did you scan the PCM yet, if not ,why not?
when the idle surges, that means.
NO RPM ranges stated, if super low rpm check EGR.

1: engine lean and ISC dead, or cant handle the huge engine power drop..The PCM can even make this worse!, buy hunting the ISC to find spec, idle and failing... to...
2: or any of 50 other things causing huge engine power drop and PCM can't maintain idle controls.
super lean burn.(bogging)
super rich burn, misfire for 50 reasons.

i cant hear your engine,nor feel it, or see it shake from gross misfiring.
no can i drive it and see/feel power loss,
can I?
asking net bunny's this (blind as bats)
is "OVER THE TOP" no?
so here , ill toss the dice for you
and guess gross misfiring.
ever get a tuneup this decade, if not bingo , no?

and the others...

http://jeepdied.com/Misfire101.html

link even has the 50 cause list, to show the futility of guessing!
we do 1 to 10 tests. and find it.
for sure.

as you can see EFI systems are complex.
gue$$ is not only expensive but can net you 2 problems easy.

Feb 05, 2016 | 2002 Jeep Grand Cherokee

1 Answer

Engine surges


try fuel filter if doesnt work check fuel pressure sounds like fuel pump if not filter

Jan 10, 2014 | Cars & Trucks

1 Answer

My truck is surging at highway speeds gets worse to the point of cutting out some in city driving but idles fine.


I'm not specifically familiar with your truck, but I would check with a dealer to ensure there is no inline filter before taking the part store's word for it. While most vehicles have a pick up filter in the tank for big stuff, I've never seen a car without an inline filter for micro-particulate. The part store you called may simply not carry it, or may carry a desk help person who doesn't know what they're doing (happens all the time). Other possible issues for your surging could be that you have a sticky injector that isn't opening/closing properly, that your automatic trans is acting up (if you have one), or a pressure regulator in the lines (my wife's car also does this because the part that is supposed to hold fuel pressure in the line is bad (as a result it starts hard unless you let the pump "prime" the pressure just before starting) and so it surges just a little with the fuel pump's cycling when driving at freeway speeds. I think you're on the right track with an inline filter though and would try that first.

Nov 13, 2013 | 1995 Dodge Ram 2500

1 Answer

My SUV is choking and it hesitates


which engine? 2L I4 or 2.5L V6?
chocking, it bogs full time.
total loss of power at all times? any speed, any hill, any gear.
is this a A/T or M/T car, the A/T can slip. easy
does the engine lack power, or does the tranny slip.
slipping is easy to discover, the RPM of the engine rise fast
but you go now where fast.
bogging can happen in many modes. (all or just 1: pick one)
all permutations
1: hot engine?
2: cold or both.?
3: wont race even in neutral, but idles ok. at 800 rpm.?
4: only with a fast right foot,called tip in throttle. but recovers.!
5: lost power at all driving loads, and worse on hills.?
6: all the above.?
in a real shop, i drive it and in a few minutes all the above is seen and vastly more, that is why online help is so bad, (me too)
no inputs. = wild guessing.....
heck i even notice things like?
dash volt meter dropping. below 14v at any time running.
overheating
CEL glowing or worse flashing (USA feature , OP never said)
old noises and vibration.
clutch slipping or A/T slipping.
Scan tool connected, and seeing pending codes, or any odd PID behaviors.
bad idle speed, idle speeds not controlled correctly.
and 100 more things, Ill stop here, it's a complex machine.

Nov 10, 2013 | 2003 Suzuki Grand Vitara

1 Answer

The car is all on normal condition until I filled the gasoline to the fuel tank (over the standard value) ,I left the gas station suddenly the speed goes down then the engine stopped , I try to ignition...


You overfilled the tank and screwed up the fuel vent canister. Usually the car will not run, dies while idling, or surges if you try to drive, also if you try to fill up again you might find it difficult to fill your tank fast because the canister is not venting the tank

Oct 21, 2013 | 1986 Mitsubishi Space Wagon

1 Answer

Engine surges especially at low speeds


Disconnect your MAF sensor and take the Astro for a ride. If you notice an improvement; Try cleaning the MAF with CRC MAF sensor cleaner.


FixYaWIZ......saailer

Dec 10, 2009 | 2000 Chevrolet Astro

2 Answers

22r carb dumping fuel at 2500 rpm will not pass smog.Was rebuilt and is in smog specs. at idle.


Fill the tank up but do not top off.

Ran the trunk for 15-20 minutes on the highway and recheck the fuel surge condition at 2500 rpm.

If it stop surging then you has a weak fuel pump.

Change the fuel filter will also help.

Also check the fast idle setting.
==
If everything checks out then set a smog check appointment in the EARLY MORNING.

Jul 05, 2009 | 1986 Toyota Pickup 4WD

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