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1997 vortec 350 automatic choke sticking causing truck to idle high has a slite miss using more than usual gas

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 8 Answers

SOURCE: 1997 ford f250 7.3 liter power stroke dielse dieing!

check fuel pressure at regulator, should be 40-50psi, could be mechanical fuel pump. go to ford and/or international truck service dealer, they have fuel pressure tester.
my 97 F250 acted same way, would white smoke on highway, was mechanical fuel pump not providing enough fuel to injectors.


Posted on Jul 08, 2008

mkv0525
  • 358 Answers

SOURCE: I have 96 gmc 350 vortec. missing really bad. Ive

ou need to check compression on all the cly. do you know which cly is dead?

Posted on Jun 12, 2009

  • 400 Answers

SOURCE: 96 Chevy Z71 with vortec 350, Code 1406.

Yep that is what the code is for. Make sure the passage is clean after you pull it off.

Posted on Oct 16, 2009

emissionwiz
  • 75117 Answers

SOURCE: engine swap 5.0 vortec to 350 non computer controled

5.0 heads will not work, most likely not the intake either.

Posted on Nov 05, 2009

  • 5 Answers

SOURCE: 1998 Chevrolet 5.7 Vortec Problems.

Most likely the intake gaskets are bad. they will sag in the middle over time and allow a vacuum leak between the head and intake. recommend replacing the gaskets with the steel instead of plastic ones.

Posted on Mar 01, 2010

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1 Answer

Choke ligt on at idle 1986 chevy w/ quadrajet carb


sounds like the float is sticking or may have a hole in it, you can try adding some automatic transmission fluid to the gas - sometimes works if it sticking,check for a vaccume leak - but usually won't overfuel with a leak- but has happend.

Apr 20, 2014 | 1989 Chevrolet C/K 2500

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The idle is sticking on park


High idle speed is usually caused by a sticking idle air control valve or a vac leak. The computer controls idle speed by how much air is allowed into the intake manifold.
is the check engine light on ?

Aug 26, 2012 | 1997 Chevrolet Tahoe

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Idle to high


First vacume air leak. If vacuum line hasbleak or not hooked up will cause high idle . Or possible automatic choke is sticking.

Jun 06, 2011 | Honda Accord Cars & Trucks

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Replaced plugs, had a tune up, replaced air filter but still idles high in p&n drive is at around 1000 p&n runs close to 2000. it also runs bad... shakes and if in drive and stopped for to long...


The first thing I would have checked is the TPS, ( throttle position sensor ), this is usually the cause of a high idle.

As far as running bad and fake stalling or stalling, there are 2 very common things that can cause that.

1. MAF, ( mass air flow ), sensor. If this is faulty you will have issues like, bad idle, loss of power when accelerating, poor gas mileage, fake stalling and stalling, eventually your engine will not start.

2. Oxygen sensors. Faulty oxygen sensors can cause very similar symptoms as the MAF.

I hope this helps you.

Feb 11, 2011 | Dodge Stratus Cars & Trucks

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97 chevy pu 305 vortec, had cyl 6 misfire and rough idle, replaced fuel injector spider now engine starts but idle real high then dies


thats usually a sign of a vacuum leak, recheck and make sure you don't have any loose hoses, or cut intake seals

Nov 12, 2010 | 1997 Chevrolet C1500

1 Answer

I have a 1998 chev z71 350 Vortec with a blown transmission (push button 4x4) Can i take the transmission out of a 1997 gmc sierra 5.7 liter (Not vortec) (manual shift 4x4) and stick it in my 1998?


Yea as long as they are both manual transmissions everything will bolt up the same.If you use your old transfer case you will still have push button.

Oct 28, 2009 | GMC Sierra 1500 Cars & Trucks

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97 k1500 5.7 liter vortec misses on cylinders 3 and 5 while idling. about 1500 rpm only cylinder 3 and 4 miss then at 2000 rpm only cylinder 4 and 8 miss. what could cause this?


I have had continuous missing issues on my 1997 Silverado after i had a new engine installed 30,000 miles ago. Today I purchased a new gasket for the EGR Valve and removed it. The mechanic had re-used the old gasket when he replaced the engine and cut corners to save $2.00. I found he had installed the EGR bass-ackwards causing my check engine light to stay on and the engine always to miss. Engine runs GREAT now

Oct 14, 2009 | 1997 Chevrolet K1500

1 Answer

Miss at idle


just increase idle rating slightly...this will definitely solve your problem...

Aug 19, 2009 | 1997 Chevrolet K1500

1 Answer

High Idle from start


Maybe the automatic choke needs a good cleaning and has gummed up over time and is possibly causing the choke to stick until the engine warms and loosens the part to function properly.

Apr 18, 2009 | 1994 Toyota Pickup

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