4.0 l games
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4.0 l games
All right here it goes, I have had a reoccuring problem with my truck. It started stalling on me when it was very warm out and I had the A/C on while at highway speed. If let to cool (about an hour) It would restart. This happened twice then I replaced:
coil pack
relays for A/c, fuel pump
fuel filter
iac
After the iac it ran good for about 1 year then I put in a K&N air filter which was to much for my MAF which I replaced. All OK for about 6 months. Now it stalled again same symptoms. I pulled the codes po171 and p0174. How long will an iac last and I am thinking about replacing intake gasket. It only seems to happen when it is above 30 celcius out and the engine is working hard with the a/c is on but once it starts it takes less and less for it to stall.Any help would be great as this is starting to bug me. When it stalled the last time it started to shudder under light accel. at 50 mph and then was a dead peddle, it still idled till I coasted to a stop then I gave it gas and nothing but a bouncey idle to a stall.
coil pack
relays for A/c, fuel pump
fuel filter
iac
After the iac it ran good for about 1 year then I put in a K&N air filter which was to much for my MAF which I replaced. All OK for about 6 months. Now it stalled again same symptoms. I pulled the codes po171 and p0174. How long will an iac last and I am thinking about replacing intake gasket. It only seems to happen when it is above 30 celcius out and the engine is working hard with the a/c is on but once it starts it takes less and less for it to stall.Any help would be great as this is starting to bug me. When it stalled the last time it started to shudder under light accel. at 50 mph and then was a dead peddle, it still idled till I coasted to a stop then I gave it gas and nothing but a bouncey idle to a stall.
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Joined: Jan 2004
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From: SW Va
Is this problem on your 96 4.0L ????
If so & seeing as how it's a 4.0L of that vintage & you have lean A/F codes for both cylinder banks, maybe a vacuum leak from the untake manafold gasket, when she gets warmed up. The 4.0L is known for that intake manafold gasket leak problem.
So you could try re-torquing the intake manafold fasteners & maybe get by, if they haven't been sucked in to much.
With this vintage, just for grins while under hood, I'd also check the condition of all vacuum lines.
Let us know what you find.
If so & seeing as how it's a 4.0L of that vintage & you have lean A/F codes for both cylinder banks, maybe a vacuum leak from the untake manafold gasket, when she gets warmed up. The 4.0L is known for that intake manafold gasket leak problem.
So you could try re-torquing the intake manafold fasteners & maybe get by, if they haven't been sucked in to much.
With this vintage, just for grins while under hood, I'd also check the condition of all vacuum lines.
Let us know what you find.
Last edited by pawpaw; Jul 27, 2007 at 07:02 AM.
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From: Newark, Ohio
After the iac it ran good for about 1 year then I put in a K&N air filter which was to much for my MAF which I replaced. All OK for about 6 months. Now it stalled again same symptoms. I pulled the codes po171 and p0174. How long will an iac last and I am thinking about replacing intake gasket. It only seems to happen when it is above 30 celcius out and the engine is working hard with the a/c is on but once it starts it takes less and less for it to stall.Any help would be great as this is starting to bug me. When it stalled the last time it started to shudder under light accel. at 50 mph and then was a dead peddle, it still idled till I coasted to a stop then I gave it gas and nothing but a bouncey idle to a stall.
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OK this is the 96 4.0l Today I just bought an upper intake gasket set ( small oring type for the ports) hope this is the right one will find out when it comes apart. Vacuum lines all seem to be ok.First I installed the K&N filter then the MAF was replaced. I have cleaned the MAF already. It just seems like the IAC as it did the same thing until I replace it then ok for a year and a bit but figure it might be a symtom of a bigger problem that is why I will look into the intake gasket. Will keep you informed was kinda hoping someone had the exact same problem and a cure.
Thanks
Geoff
Thanks
Geoff
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