I have an EXCELLENT running 98 Plymouth (rip) Neon, SOHC powered that I drag race and when I drive it after it has sat for a couple or more days there is a strong gas smell in the interior until it has been driven quite a distance. Could it be bad seals on the injectors. One shop that had it for another problem noticed the smell but could not find it. If it is driven every day there is no smell at all.
[SIZE=3][COLOR=#000000]47 Time NHRA/IHRA drag race champ-----84 Plymouth Horizon/1 of 84 HO equipped from the factory/1910 lbs, 2.5 with carb, nearly 315,000 miles-----04 SRT4/S2 with S3 turbo/12.17 @ 119/DOTs/93 Octane/SOLD-----2003 PT Cruiser GT, won a True Street class at the 2017 National Muscle Car Association World Street Finals-----2010 Toyota Prius/my delivery truck, 77.9 mpg best and NOT A PLUG IN, nearly 230,000 miles and way over 5600 miles per month! [/COLOR][/SIZE]
Check the gas gas tank filler neck. I have seen some pretty rusty ones.
Mike Marra
1986 Plymouth Horizon GLMF "The Contraption" < entertaining sponsorship offers
Project Log:
http://www.turbo-mopar.com/forums/showthread.php?69708-The-Contraption-2013-14&highlight=
Can you find someone with a smoke tester? I had a broken vent valve on top of the tank.
Is the car rusty? I've had fuel lines that actually wouldn't leak while running or sitting but vented enough to smell.
Also check the EVAP lines, gas cap and what others have said. Usually for me, fuel injectors or o-rings that leak are pretty easy to see on 4 Neon type engines.
Maybe install a fuel pressure gauge and see if the pressure drops overnight?
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
Had that problem for the longest time in my Daytona. Turned out the fuel pressure regulator was leaking fuel into my vacuum system, mostly into the hose going to my boost gauge.
I'm not familiar with Neons, but might be worth checking.
check the fuel line under the hood going to the rail, on everyone i've seen they have a small dampner built into the line, near the firewall, everyone i've seen with this also shows evidence of fuel leaking from that dampner.
Today I was having the car worked on because the last time I drag raced it the cam belt broke...only 40,000 miles was on it and a junk belt tensioner bearing was the culprit. My wrench found that the quick release section of fuel line going to the injector rail was leaking. Now that the car is apart I am debating a 3 angle valve job and milling 20 thou off the head. The car is a slightly modded 95 SOHC Neon....TB from an automatic car, injectors from an automatic car, ported plastic intake, "performance" cat, and a cheap universal V8 Camaro muffler at the rear. When the belt broke all 8 exhaust valves touched the pistons, barely bending 4 of the valves, 2 barely and 2 others leak more on a liquid leak down test. I don't have much $$$$ so I might just go the cheap way via used valves and a hand lap job with no valve job and no milling. I don't know how much hp improvement would be gained witht he extra work and if it would be worth it.
[SIZE=3][COLOR=#000000]47 Time NHRA/IHRA drag race champ-----84 Plymouth Horizon/1 of 84 HO equipped from the factory/1910 lbs, 2.5 with carb, nearly 315,000 miles-----04 SRT4/S2 with S3 turbo/12.17 @ 119/DOTs/93 Octane/SOLD-----2003 PT Cruiser GT, won a True Street class at the 2017 National Muscle Car Association World Street Finals-----2010 Toyota Prius/my delivery truck, 77.9 mpg best and NOT A PLUG IN, nearly 230,000 miles and way over 5600 miles per month! [/COLOR][/SIZE]
Before you get a valve job watch the first half hour or so of the vid I posted up here...
http://www.turbo-mopar.com/forums/sh...t-David-Vizard...
---------- Post added at 08:36 AM ---------- Previous post was at 08:35 AM ----------
BTW my Escort seems to reek around the Evap canister when it's been sitting a while in hot weather.
DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!
Regulator is built into the fuel pump assembly on neon's.Originally Posted by supercrackerbox
Since I am broke and cheap I decided to get some of his good used valves hand lapped and put in. The biggest hp for the $$$ seems to be a 2002-2005 Magnum R/T SOHC head, intake, and exhaust....so I'll just save my money for now and wait until I find that set up...anyone out there have that sitting around?
[SIZE=3][COLOR=#000000]47 Time NHRA/IHRA drag race champ-----84 Plymouth Horizon/1 of 84 HO equipped from the factory/1910 lbs, 2.5 with carb, nearly 315,000 miles-----04 SRT4/S2 with S3 turbo/12.17 @ 119/DOTs/93 Octane/SOLD-----2003 PT Cruiser GT, won a True Street class at the 2017 National Muscle Car Association World Street Finals-----2010 Toyota Prius/my delivery truck, 77.9 mpg best and NOT A PLUG IN, nearly 230,000 miles and way over 5600 miles per month! [/COLOR][/SIZE]
you mean I'm not the only one here???
DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!
Got the head,cam, exhaust header and the magnum intake manifold. Only problem is some bent valves.
So....does it say R/T on the side of it? If it is I am VERY interested as a future investment. Are the exhaust valves bent? Let me know....
[SIZE=3][COLOR=#000000]47 Time NHRA/IHRA drag race champ-----84 Plymouth Horizon/1 of 84 HO equipped from the factory/1910 lbs, 2.5 with carb, nearly 315,000 miles-----04 SRT4/S2 with S3 turbo/12.17 @ 119/DOTs/93 Octane/SOLD-----2003 PT Cruiser GT, won a True Street class at the 2017 National Muscle Car Association World Street Finals-----2010 Toyota Prius/my delivery truck, 77.9 mpg best and NOT A PLUG IN, nearly 230,000 miles and way over 5600 miles per month! [/COLOR][/SIZE]
Posting Permissions
Reply With Quote
