Question about 1985 Chevrolet Chevy

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Replaced rubber seals on fuel injectors and when key is turned on they leak whats might be the problem

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Are the rubber O-rings the fuel proof type? A smear of vaseline is usually helpful, to make sure the seal slides into the fuel rail properly.

Posted on Oct 07, 2009


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Have changed battery, have full take of gas, has been below zero, can smell gas when trying to start. can it be frozen up spmewhere?

Yes,fuel can gell up in severe cold..a shot of starting fluid can give you an easier start...but what concerns me is the smell of fuel. In severe cold some rubber seals can harden up and crack causing a leak...check seals around fuel filter on bottom along frame rail or also check injector seals...somewhere you have a leaking seal to smell fuel...check for fuel accumulation somewhere.

Feb 25, 2015 | 2002 Chrysler PT Cruiser

1 Answer

Gas leak in engine compartment.

Without looking at it, If there is raw fuel anywhere up top this is what i would do:
1. check rubber fuel lines on the intake. easy fix if leaking
2. check or replace the fuel injector o-rings they are $3.00 per set easy fix.
3. check cold start injector for fuel leak also easy fix

If no fuel leaks can be found in lines i would go straight for the injector seals but in noway would i let this stop me from buying the car if thats all thats wrong. even if an injector is cracked it is under $80.00 fix. here is a link showing the injector and o-ring position

Nov 06, 2012 | 1997 Subaru Legacy

2 Answers

1998 camry oil smells like fuel, 260,000 miles. out runs strong, Just replaced the valve gaskets, can anyone help me figure out what's wrong?

These engines do have chronic oil leaks onto the exhaust, hence the burning smell. When cam cover gaskets are replaced it is best to use the genuine Toyota parts, they seem to have some quality which lasts better.

Other places which leak are the distributor shaft o-ring seal, and crankshaft nose seal, behind the timing belt sprocket. These can be replaced. The crankshaft rear main seal will leak, but is expensive, so just leave it.

Oct 21, 2012 | 1998 Toyota Camry

1 Answer

I replaced a fuel injector on my 95 Cavalier and now it wont run

Use a gage and check proper fuel pressure, 41--47 psi, key on engine off. Cycling the key on and off a few times before you crank it, should prime the system.
Check for fuel injector pulse, use a noid lite, engine cranking. The voltage for fuel injector probably goes hot with the key on. The computer grounds the fuel injector circuit. The diagram is for 2.2L engine. The pink wire for fuel injectors is voltage, the bottom wire is ground. We've talked about the fuel system, could be other issues?

fuel injectors-mbl3q30razq005ehaxtcof2q-5-0.jpg

May 01, 2017 | 1995 Chevrolet Cavalier

2 Answers

I have a gmc jimmy that will not run it keeps flooding out we replaced the spider under the intake and the fuel presure reg. but still dumps fuel like a stuck pig any suggestions

put a fuel pressure guage on it and turn the key to on, the pressure should build and hold if not you may have a leaking injector or injector seal

Nov 20, 2010 | 1994 GMC Jimmy

1 Answer

I have a gas leak under my hood. We replaced a part to try and stop the leak but it did not work. I dont know the name of the part. What else could it be?

your gonna have to find the leak source.. possibilties are fuel rail input and output seals.. fuel injector seals, fuel injector rails and fuel injectors. your gonna have to check them all and find the leak.

Apr 10, 2010 | 2005 Dodge Neon

1 Answer

My 02 stratus has a fuel rail leak only when first

Their are O-rings on each end of the injectors, (if that is where it's leaking?) when they are cold they shrink up, if their is a small crack in the O-ring it will leak, as they warm up the rubber will expand, sealing it off.
I had this problem with an intrepid and had the rings replaced, I still had one injector that was leaking and had to replace that too, but the rings are relatively inexpensive, even paying a garage to do it.
Hope this helps you seal it up.

Mar 15, 2010 | 2002 Dodge Stratus

1 Answer

Fuel leak around the injector on a 99 ford f 359 7.3 engine

Hello there :
on these injectors they have a seal some of these have a copper crush washer on them to seal them and on some of these havea rubber o ring that seals them so you are going to need to find out exactly what kind yours has and then get it replaced and make sure that the proper tourqe is used ok?
Hope this is very helpful for you?
Best regards Michael

Jan 11, 2010 | 1999 Ford F350 Regular Cab

1 Answer

Replacing fuel injector on jeep 2.5

Disconnect your Battery.
Remove your air intake and filter housing all the way to the throttle body. Then use a shop rag and release te pressure in the fuel system by the valve on the fuel rail. use the rag to absorb the fuel as it sprays out the fuel rail.
then you unsrew the 2 bolts holing the rail in place.
Then you pry the rail away from the manifold with a flat head.
being careful not to loose any of your injector seals.
when done clean both your injector seats and the rail seats.
use some assembly lube or shop grease to lubricate all of your injector seals upper and lower seals.
remount all parts as you dismounted.
reconnect your battery cylce the ignition key 4-5 times before starting the egine, and check for leaks. if there is no leak then go ahed and start your engine.

Jun 20, 2008 | 1987 Jeep Wrangler

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